Construct Validity Of Measures Research Articles

Establishing construct validity for dynamic measures of behavior using naturalistic study designs.

There has been a recent surge of naturalistic methodology to assess complex topics in psychology and neuroscience. Such methods are lauded for their increased ecological validity, aiming to bridge a gap between highly controlled experimental design and purely observational studies. However, these measures present challenges in establishing construct validity. One domain in which this has emerged is research on theory of mind: the ability to infer others' thoughts and emotions. Traditional measures utilize rigid methodology which suffer from ceiling effects and may fail to fully capture how individuals engage theory of mind in everyday interactions. In the present study, we validate and test a novel approach utilizing a naturalistic task to assess theory of mind. Participants watched a mockumentary-style show while using a joystick to provide continuous, real-time theory of mind judgments. A baseline sample's ratings were used to establish a "ground truth" for the judgments. Ratings from separate young and older adult samples were compared against the ground truth to create similarity scores. This similarity score was compared against two independent tasks to assess construct validity: an explicit judgment performance-based paradigm, and a neuroimaging paradigm assessing response to a static measure of theory of mind. The similarity metric did not have ceiling effects and was significantly positively related to both the performance-based and neural measures. It also replicated age effects that other theory of mind measures demonstrate. Together, our multimodal approach provided convergent evidence that dynamic measures of behavior can yield robust and rigorous assessments of complex psychological processes.

Construction and Initial Validation of Measures Regarding Human Milk Donation: An Application of the Theory of Planned Behavior

Objective: to construct and validate measures related to human milk donation (HMD), based on the theory of planned behavior (TPB). Theoretical framework: it is assumed that TPB can be used to explain and predict HMD behavior and the construction of these measures should consider reflective and formative measures. Method: a questionnaire was developed with 12 direct reflective measures and 30 indirect formative measures and applied to a sample of postpartum women eligible to donate. The reliability of the direct measures was verified by the internal consistency criterion, using Cronbach's alpha and composite reliability. The reliability of the indirect measures was verified by the temporal stability criterion, using the test-retest technique and the intraclass correlation coefficient. The construct validity of the direct measures was established through the convergent and discriminant validity of these measures. The construct validity of the indirect formative measures was established through convergent validity, the assessment of collinearity problems and the assessment of the significance and relevance of the formative measures. Results and conclusion: the reliability and validity of the direct reflective and indirect formative measures indicated that they are reliable and acceptable. Research implications: this questionnaire can be used to predict HMD behavior, which in turn can improve donor recruitment management in human milk banks. Originality/value: a questionnaire with direct and indirect measures of the TPB on HMD is unprecedented.

Validation of a Service Behavior Measurement According to Emergency Medical Standards of Health Personnel: Cross-Sectional Study

Background: Emergency medical services are in pre-hospital health services. This is a critical time, important to the lives of emergency patients. Using a measure to assess the service behavior according to emergency medical standards (SB-EMS) will help medical personnel perform their work according to standards, resulting in emergency patients having more chances of survival and safety. Objective: To validate the measurement tool of SB-EMS for evaluating quality, accuracy, and reliability. Materials and Methods: The present study was a cross-sectional study executed between January and May 2024 designed by collecting data based on 205 health personnel, which consisted of professional nurses, paramedics, and emergency medical technicians working in the Bangkok emergency medical service system through stratified random sampling. The data were collected with a 6-rating scale questionnaire. An initial sampling from 30 participants gave a Cronbach’s alpha of 0.77 to 0.84 and item-total correlations of 0.55 to 0.79. Data was analyzed by confirmatory factor analysis (CFA) using LISREL version 8.72. Results: CFA confirmed the construct validity of measures with empirical data. The 16-item of service behavior according to the emergency medical standards scale achieved an overall Cronbach’s alpha of 0.93 and factor loading between 0.59 to 0.87. There was a chi-square value of 166.35 at 85 degrees of freedom. The probability was 0.000, comparative fit index (CFI) was 0.99, root mean square error of approximation (RMSEA) was 0.06, and standardized root mean square residual (SRMR) was 0.04. Conclusion: The developed scales serve as high-quality assessment tools for human resources specialists or academicians in screening or assessing SB-EMS of health personnel.

Issues Behind the Measurement of Political Orientation

Abstract: Given the limited research addressing the construct and content validity of single-item and multiple-item measures of political orientation (PO), we investigated the effect sizes in the relationship between PO and variables categorized into multiple dimensions using a meta-analysis of 511 independent effect sizes from 108 articles published from 2012 to 2022. Multiple-item measures of PO that included economic items had a large effect size ( r = .55 ~ .75) in their association with variables in the economic, environmental, and traditionalism dimensions, whereas we found small effect sizes ( r = .23 ~ .24) between single-item PO and variables in the economic and environmental dimensions and a medium effect size ( r = .31) between single-item PO and variables in the traditionalism dimension. Based on the pooled data consisting of all multiple dimensions’ data subsets, we found medium effect sizes ( r = .35 ~ .39) for multiple-item measures of PO and a small effect size ( r = .27) for single-item PO. Our content analysis of 30 multiple-item measures of PO showed that over 80% of multiple-item measures were grounded in US and/or Western countries’ political contexts and samples and 50% of them did not measure economic aspects of PO. We discuss implications for future research.

Basic Trauma Cardiac Life Support Training Management on Senior High School Students

Basic Trauma Cardiac Life Support (BTCLS) training is crucial for emergency preparedness among high school students. This study evaluated the effectiveness of BTCLS training for Al-Fityan Private High School students, focusing on skill acquisition and knowledge retention.A pretest-posttest design assessed the BTCLS training program's efficacy using a validated research instrument. The instrument's validity and reliability were established through content validation, construct validation, and internal consistency measures (Cronbach's Alpha). The program, integrated into the school curriculum, was delivered by certified healthcare professionals and emphasized hands-on practice.A paired t-test compared BTCLS knowledge and skill scores before and after training. Results showed statistically significant improvement from pretest (M = X, SD = Y) to posttest (M = X', SD = Y'); t(df) = t-value, p < 0.05. The mean score increase was Z (95% CI [lower bound, upper bound]), demonstrating a substantial positive effect on students' emergency response capabilities.The significant improvement in test scores suggests the BTCLS training program effectively enhanced students' knowledge and skills in trauma and cardiac life support. This aligns with previous research indicating that early skill acquisition in high school students can improve bystander intervention and potentially increase survival rates in emergencies.The study demonstrates the feasibility and importance of integrating comprehensive life support training into high school curricula. Future research should explore long-term skill retention and the broader community impact of BTCLS-trained high school students.

Portuguese Version of the Oral Frailty Index-8: Instrument Validation Study.

The concept of oral frailty has gained scientific and clinical relevance in recent years, and early detection can facilitate timely intervention to manage its progression. The Oral Frailty Index-8 (OFI-8) was developed to assess community-dwelling older adults at risk for oral frailty. This study aims to investigate the psychometric validity of the OFI-8 in the Portuguese population, named the Portuguese version of the OFI-8 (OFI-8-PT), which may serve as a reference for future studies related to longevity and oral function. This study included 2 main phases, involving patients aged 60 years or older, Portuguese speakers, and those who consented to participate in the study. First, the researchers translated and cross-culturally adapted the original questionnaire to make it suitable for native Portuguese speakers. The translated tool was then assessed for psychometric validation, which consisted of test-retest reliability, internal consistency, construct validity, and sex invariance measurement. A total of 159 older adults participated in the baseline survey, with almost equal numbers of male (n=79, 49.7%) and female participants (n=80, 50.3%). The OFI-8-PT demonstrated good reliability (Cronbach α=0.95) and construct validity (goodness-of-fit index=0.96; comparative fit index=0.85; and root mean square error of approximation=0.05, 90% CI 0.00-0.09). The study found sex invariance, indicating that the OFI-8-PT is equally valid for male and female participants, and the tested-retest reliability of the OFI-8-PT was good, indicating consistent results over time. The OFI-8-PT showed psychometric validity and good reliability to be used in the Portuguese population.

Psychometric Evaluation of a Measure of Evidence-Based Practice in Occupational Health.

Occupational Health Services (OHS) are obliged to follow the principles of evidence-based medicine. However, there needs to be tools to measure this. Therefore, we developed and validated a questionnaire for evaluating OHS practitioners' attitudes, competence, and organisational support to perform evidence-based practice (EBP-OHS) following the JBI Model of Evidence-Based Healthcare. The questionnaire's content validity was assessed by 12 experts in the field. Then, an opportunity sample of 549 OHS practitioners completed the questionnaire. We examined the questionnaire's psychometric properties using exploratory factor analysis and subjected it to construct validity and reliability testing. The content validity index of the chosen items was 0.78 or higher. Exploratory factor analysis revealed that the measure's construct validity was adequate (KMO 0.9). Principal component factor analysis supported a three-factor structure (all eigenvalues 1.3 or more), which explained 60.3 % of the total variance. Aligned with these three factors, the EBP-OHS consists of three domains: Organisational support (seven items), OHS practitioners' competence (six items) and OHS practitioners' attitudes (two items). The scale's reliability is good (Cronbach alpha 0.88). The EBP-OHS is a valid tool for measuring occupational health services' evidence-based practice and enabling the implementation of research into practice. It embodies the phases of evidence transfer and implementation described in the JBI Model of Evidence-Based Healthcare and translates them into concrete measurable activities in the OHS context.

Creation and Validation of a Spanish Questionnaire for Evaluating Pediatricians' Satisfaction with Teledermatology.

Introduction: In 2021, we introduced a program to promote the use of teledermatology among pediatricians. In the present study, we created and validated a satisfaction questionnaire to assess pediatricians' perceptions of teledermatology. We used this questionnaire to evaluate the efficacy of the program. Methods: First, a provisional questionnaire, based on questionnaires available in the literature, was drafted. A group of experts evaluated the clarity, coherence, relevance and sufficiencyof the questions, and we calculated a content validity index (CVI). Only questions with a CVI above 0.78were acceptable. Based on these results and on the experts' comments, we revised the questionnaire and then sent it to a population of pediatricians. We used their responses to validate the revised questionnaire using statistical methods. A Cronbach's alpha above 0.7 indicated adequate internal consistency, and an intraclass correlation coefficient above 0.75 indicated adequate reproducibility. We used the Varimax method to measure construct validity. Results: We clarified and reformulated some questions from the provisional questionnaire based on the experts' comments. All questions had a CVI above 0.78, so no other changes were needed. Although the statistical validation showed suboptimal construct validity, the revised questionnaire had good internal consistency and reliability, and high content validity index. Discussion: The validated questionnaire is a robust tool for assessing pediatricians' satisfaction with teledermatology.

Impact of Digital Marketing, Influencer, Live Features, and Reviews Shopee Purchase With Brand Image

The advancement of information and communication technology in the digital era has revolutionized various aspects of human life, including in the realm of business and marketing. Marketing activities that once relied on direct interaction between sellers and buyers have now shifted towards digital marketing that utilizes online platforms. Indonesia, as the largest economy in Southeast Asia, has made an e-commerce as the main driver of socioeconomic growth. Supported by a population of over 270 million people and ever-increasing internet penetration, the development of e-commerce in Indonesia has experienced rapid progress in recent years. This study aims to analyze the impact of digital marketing, influencer marketing, live features, and Online Customer Reviews on online purchase decisions on the Shopee platform with brand Image as an intervening variable. This research used a quantitative method with a data collection technique through an online questionnaire to 210 Shopee users in Indonesia. The measurement of construct validity and reliability was carried out using the measurement model (outer model). Then, the structural model (inner model) was used to test the model's strength, predictive ability, model significance, and the direct and indirect influence of independent variables on the dependent variable. The test tool employed SmartPLS 3.0. The results of this study indicate that the variables of Digital Marketing, Live Features, and Brand Image have a significant influence on Purchase Decisions on Shopee e-commerce. Furthermore, the variables of influencer marketing, live features, and Online Customer Review have a significant influence on Brand Image on Shopee e-commerce. Meanwhile, for the indirect influence, the variable live features have a significant influence on purchase decisions on Shopee e-commerce through Brand Image as an intervening variable.

The Upside of Teachers’ Technostress: Adaptation and Validation of a Techno-eustress Scale

Digital education transformation introduced a new source of stress for higher education teachers (HETs). Research has studied the effects of technostress, or technology-induced stress, focusing on its harmful consequences (techno-distress). Recent literature further suggests that technostress can also benefit individuals and organizations (techno-eustress), contributing to wellbeing, effectiveness, and performance. However, techno-eustress measurements are scarce. This study aimed to adapt and validate the Techno-eustress Scale for HETs. The scale was translated, adapted, and tested in a nationwide sample of 1,107 Portuguese HETs. Both exploratory and confirmatory factor analyses were used. Results led to a brief 5-item Portuguese version of the techno-eustress scale, exhibiting a one-dimensional structure and robust psychometric qualities, evidencing reliability, construct validity, and strict measurement invariance. The study provided a parsimonious techno-eustress assessment that assists future research and practice. Our work extended technostress research and crosses scientific domains such as education, psychology, information systems, and management. This brief measurement underpins positive organizational studies as it opposes the eternalization of techno(di)stress measurements, in a technology-based era when wellbeing, notably for HETs, is a precious asset.

A validity exploration model related to the existence of the generic problem-solving competence

There has been a growing focus on exploring the existence of Generic Problem-Solving competence across various fields, leading to heightened attention in this area. However, most of the previous and current approaches are limited in terms of validity and reliability. Thus, this paper aims to propose a new approach based on The Standards for Educational and Psychological Testing validity framework to investigate this matter. The investigation leads to the review of the conceptions of construct validity in educational measurement. The paper concentrates on the proposed validity exploration (VE) model, representing an elaborate enterprise and a serial, progressive procedure aligned with the content and structural validity aspects of The Standards framework. The PISA Computer-based Assessment was used as secondary data for this investigation.

The approach of Norm Balance in predicting pharmacists' intention to collaborate with physicians to improve medication therapy.

Norm Balance is an approach under the Theory of Planned Behavior (TPB) where subjective norm is weighted by the relative importance of others and self-identity is weighted by the relative importance of self. The relative importance was measured previously by a trade-off measure. In this study, we developed separate measures for the relative importance. The study objectives were to: 1) assess the construct validity of the separate measures; 2) examine the approach of Norm Balance in predicting pharmacists' intention to collaborate with physicians to improve medication therapy; and 3) establish a modified TPB. We selected a random sample of 750 Iowa pharmacists and conducted two surveys. The first survey was to examine intention prediction, and the second survey was to examine behavior prediction by measuring behavior among respondents to the first survey. The relative importance was measured by both the trade-off measure and the separate measures. Exploratory factor analyses were performed for the relative importance of others (separate measures) and subjective norm, and for the relative importance of self (separate measures) and self-identity. Regressions for intention prediction were conducted for TPB with self-identity and the approach of Norm Balance. The same regressions were also conducted for three subgroups according to the median of the relative importance of others (trade-off measure). Moreover, another regression was conducted for behavior prediction. 239 practicing pharmacists responded to the first survey, and 188 responded to the second survey. The separate measures had cross factor loadings, whereas the trade-off measure had low correlations with other constructs. Both regressions for intention prediction explained 75% of the variance, with self-efficacy and attitude being strong predictors. Self-identity was not a predictor in the TPB with self-identify, but self-identity weighted by the relative importance of self was a significant predictor in the approach of Norm Balance. Regression coefficients of subjective norm and self-identify varied across subgroups. The regression for behavior prediction explained 30% of the variance, with intention and self-efficacy being two predictors. The trade-off measure was better than separate measures. The approach of Norm Balance appears to be a better model than the TPB with self-identity to examine pharmacist-physician collaboration.

Assessments scales for the evaluation of health-related quality of life in Parkinson's disease, progressive supranuclear palsy, and multiple system atrophy: a systematic review.

The concept of wellbeing is expansive and intricate, making it challenging to define precisely. Similarly, the instruments employed to assess wellbeing are complex and multifaceted. Therefore, it is more appropriate to refer to the notion of wellbeing as Health-Related Quality of Life (HRQoL), which is the central focus of many measures used to assess the feeling of wellbeing. This review aimed to identify the tools most commonly used to evaluate HRQoL in individuals with Parkinsonism-a group of movement disorders that negatively impact the quality of life due to the intricate interplay of symptoms, socio-demographic characteristics, and psychological factors. The main aim was to assess the psychometric properties of these measures in terms of validity and reliability. A literature review was conducted, focusing on research related to the assessment of HRQoL in connection to symptoms of Parkinsonism. This review included all studies that examined HRQoL using evaluation scales, exams, or self-reported questionnaires. The literature review was conducted using the databases Scopus and Web of Science and the search engine PubMed to identify studies published between 1996 and 2023. Only records that assessed HRQoL in individuals with Parkinson's disease and Parkinsonism were selected for evaluation. A total of 393 records were examined, and eight tools were identified as the most frequently used in the evaluation of HRQoL. The results show a significant gap in knowledge regarding the latent structure and measurement invariance of HRQoL measurements, which may have a significant influence on the interpretation of test outcomes. Moreover, there is a lack of clear divergent validity between HRQoL assessments and other tests used as predictors of HRQoL. This could represent a significant limitation, affecting the construct and criterion validity of HRQoL measures.

An Updated Validation of Persian Versions of Six Personality Questionnaires: TEMPS-A, AFECTS, TCI, PANAS, NEO-FFI, PDQ-4

Background: The revision and updating of questionnaires are part of the list of comprehensive guidelines for using psychological questionnaires. The present study aimed to test the construct and convergent validity of the Persian versions of six personality questionnaires including the Temperament Evaluation of Memphis, Pisa, Paris, and San Diego-Autoquestionnaire (TEMPS-A: 35 items), the Affective and Emotional Composite Temperament Scale (AFECTS: 48 items), the Temperament and Character Inventory (TCI: 125 items), the Positive Affect and Negative Affect Schedule (PANAS: 20 items), the NEO-Five-Factor Inventory (NEO-FFI: 60 items), and Personality Diagnostic Questionnaire-4 (PDQ-4: 99 items). Methods: The data from four independent samples of Iranian adults ( N1 = 1137, N2 = 558, N3 = 496, N4 = 478; total N = 2669, 70% female, 32.8 ± 10.7 old years) were analyzed by exploratory structural equation modeling (ESEM). Pearson correlations between constructs of the Personality Inventory for DSM-5-Short Form (PID-5-BF: 25 items) or the ICD-11 compatible Personality Inventory for DSM-5–Brief Form Plus, Modified (PID5BF+M: 36 items) and the personality measures were used to evaluate convergent validity. Results: Although the number of factors of TEMPS-A and PDQ-4 were slightly different from the original structures, the results supported the factor structure and reliability (all α between 0.68 and 0.92) of all measures. Most factors of all measures were significantly related to either the PID-5-BF or the PID5BF+M constructs (all P <.05). Conclusion: The findings supported both construct validity and convergent validity of all personality measures in Iranian samples. Mental health professionals can use the Persian version of all valid personality measures to draw personality profiles of adult populations.

Reliability and validity assessment of instrument to measure sustainability practices at shipping ports in India

Sustainability has emerged as one of the most critical factors influencing the competitiveness of maritime shipping ports. This emergence has led to a surge in research publications on port sustainability-related topics. However, despite the increasing awareness and adoption of sustainability practices, documented literature on empirical studies with survey and interview data is very limited. Moreover, the existence of validated instruments to objectively assess sustainability through sustainability practices for shipping ports in India needs to be traced. This study contributes by validating an instrument to evaluate objectively sustainability practices in shipping ports by adopting a four-stage process, starting with item identification based on an extensive literature review, instrument evaluation by subject matter experts, assessing of the instrument with suitable content validation indices, and finally evaluating the validity and reliability of the hypothesized theoretical model. For content validation, Content Validity Index, Cohens Kappa coefficient, and Lawshe’s Content Validity Ratio were computed with the assessment by a subject matter expert panel comprising six members from the port industry as well as academicians cum researchers in the field of shipping ports. The content-validated instrument was administered to 200 samples comprising officer category port employees. The measurement model was evaluated and validated using the Confirmatory Factor Analysis to assess the extent to which the measured variables represent the theoretical construct of the study and ascertain the factor structure. The empirically validated instrument met the required guidelines of model fit, reliability, and construct validity measures and was found to be a confirmed model for measuring sustainability practices in shipping ports. Structural Equation Modeling methodology was adopted to explain the variance and the path relationship between the higher-order and lower-order constructs of sustainability. The results indicate that the economic dimensions are the major contributors to the overall sustainability of the port as they drive investments in environmental and social dimensions, leading to overall sustainable development. The study’s findings will be helpful for researchers, academicians, policymakers, and industry practitioners working towards sustainability practices that contribute to sustainable growth and development in the shipping industry.

Smartphone-Based Assessment of Mobility and Manual Dexterity in Adult People with Spinal Muscular Atrophy.

More responsive, reliable, and clinically valid endpoints of disability are essential to reduce size, duration, and burden of clinical trials in adult persons with spinal muscular atrophy (aPwSMA). The aim is to investigate the feasibility of smartphone-based assessments in aPwSMA and provide evidence on the reliability and construct validity of sensor-derived measures (SDMs) of mobility and manual dexterity collected remotely in aPwSMA. Data were collected from 59 aPwSMA (23 walkers, 20 sitters and 16 non-sitters) and 30 age-matched healthy controls (HC). SDMs were extracted from five smartphone-based tests capturing mobility and manual dexterity, which were administered in-clinic and remotely in daily life for four weeks. Reliability (Intraclass Correlation Coefficients, ICC) and construct validity (ability to discriminate between HC and aPwSMA and correlations with Revised Upper Limb Module, RULM and Hammersmith Functional Scale - Expanded HFMSE) were quantified for all SDMs. The smartphone-based assessments proved feasible, with 92.1% average adherence in aPwSMA. The SDMs allowed to reliably assess both mobility and dexterity (ICC > 0.75 for 14/22 SDMs). Twenty-one out of 22 SDMs significantly discriminated between HC and aPwSMA. The highest correlations with the RULM were observed for SDMs from the manual dexterity tests in both non-sitters (Typing, ρ= 0.78) and sitters (Pinching, ρ= 0.75). In walkers, the highest correlation was between mobility tests and HFMSE (5 U-Turns, ρ= 0.79). This exploratory study provides preliminary evidence for the usability of smartphone-based assessments of mobility and manual dexterity in aPwSMA when deployed remotely in participants' daily life. Reliability and construct validity of SDMs remotely collected in real-life was demonstrated, which is a pre-requisite for their use in longitudinal trials. Additionally, three novel smartphone-based performance outcome assessments were successfully established for aPwSMA. Upon further validation of responsiveness to interventions, this technology holds potential to increase the efficiency of clinical trials in aPwSMA.

Construct validity of PROMIS pain interference, fatigue, and physical function as patient-reported outcomes in adults with idiopathic inflammatory myopathies: An international study from the OMERACT myositis working group

BackgroundValidated patient-reported outcome measures to assess disease impact in patients with adult idiopathic inflammatory myopathies (IIMs) are needed. The objective of this study was to assess the construct validity of PROMIS Pain Interference, Fatigue, and Physical Function measures in comparison with core disease activity measures. MethodsAdults with IIM, excluding inclusion body myositis, from OMERACT Myositis Working Group (MWG) clinic sites completed PROMIS Short Form v1.0—Pain Interference 6a, PROMIS Short Form v1.0—Fatigue 7a, and PROMIS Short Form v2.0—Physical Function 8b measures. Core disease activity measures including patient and physician global disease activity assessments, manual muscle testing, serum creatine kinase activity, and Health Assessment Questionnaire Disability Index (HAQ-DI) were simultaneously assessed. To evaluate construct validity, a priori hypotheses for the expected correlations between PROMIS measures, age, and core disease measures were determined by >70 % agreement among MWG members and were compared against observed Pearson's correlations. Internal consistency of items and floor or ceiling effects for the PROMIS measures were also assessed. Subgroup analysis according to IIM subtype (dermatomyositis vs. non-dermatomyositis IIM) was performed. Results135 adults with IIM from 5 countries across North America, Europe, Asia, and Australia were included. For construct validity, a priori hypotheses were confirmed for 5 of 6 (83 %) PROMIS Pain Interference, 4 of 5 (80 %) PROMIS Fatigue, and 3 of 4 (75 %) PROMIS Physical Function correlations. Internal consistency was high for each PROMIS measure (Cronbach's alpha >0.9). Ceiling effects were observed only for PROMIS Pain Interference, with low/no pain in 29 % of patients. Subgroup analysis between dermatomyositis (n = 65) and non-dermatomyositis (n = 70) subtypes demonstrated similar correlations between PROMIS measures and disease activity measures. ConclusionsPROMIS Short Form v1.0—Pain Interference 6a, PROMIS Short Form v1.0—Fatigue 7a, and PROMIS Short Form v2.0—Physical Function 8b measures demonstrate strong construct validity when compared to core disease activity measures in IIM, with consistent results across IIM subtypes. These findings support the use of these selected PROMIS measures to assess core domains of interest for measuring life impact in IIMs.

Development, validity, and reliability assessment of the Canadian Food Literacy Measure.

Food literacy is a growing area of interest given its potential to support healthy and sustainable diets. Most existing food literacy measures focus on nutrition and food skills but fail to address food systems and socio-environmental aspects of food literacy. Further, measures developed and tested in the Canadian context are lacking. The objective of this project was to develop and test the validity and reliability of a brief self-administered measure, in French and English, designed to assess multiple dimensions of food literacy among adults living in Canada. The 23-item Canadian Food Literacy Measure was developed through an iterative process that included assessment of face and content validity through expert review (n=20) and cognitive interviews (n=20) and construct validity and reliability, i.e., internal consistency through an online survey (n=154). The results indicate that the measure is well understood by both English- and French-speaking adults. The measure's construct validity is demonstrated by the observed differences in total scores in hypothesized directions by gender (p=0.003), age (p=0.007), education level (p=0.002), health literacy (p<0.001) and smoking status (p=0.001), and the significant positive correlation (r=0.29; p=0.002) between total scores and fruit and vegetable intake. The measure also has high internal consistency with a Cronbach's coefficient alpha of 0.80. This measure can be used in surveillance studies to provide insight into the food literacy of adults living in Canada and in epidemiologic research that aims to explore how food literacy is associated with a variety of health outcomes.

Motivations for Endogamous Relationship Preferences.

People tend to select romantic partners who belong to the same social group as themselves (i.e., endogamy). However, there is limited research on the proximal psychological motivations for choosing endogamous relationship partners. The purpose of this research was to develop a measure of motivations for endogamous relationship preferences and to assess whether such motivations were associated with actual dating experiences and attitudes toward endogamy across four common social categories: race and/or ethnicity, religion, social class, and education. Data from an online sample of participants (Study 1, n = 341) were used to generate items assessing motivations for endogamous relationship preferences. This initial set of items was administered to a new sample of participants (Study 2, n = 193) to establish the component structure of the measure and to examine whether the motivational components were associated with participants' past exogamous dating experiences as well as the perceived importance of dating within one's own racial and/or ethnic, religious, socioeconomic, and educational group. Endogamy motivations characterized by intergroup prejudice were the strongest and most consistent correlates of endogamous relationships and the perceived importance of endogamy. Study 3 (n = 332) replicated the component structure of the measure and the general pattern of associations documented in Study 2, and provided evidence for the measure's construct validity. The overall findings suggest that intergroup prejudice partially explains preferences for endogamous relationships.

The development of a novel, standardized, norm-referenced Arabic Discourse Assessment Tool (ADAT), including an examination of psychometric properties of discourse measures in aphasia.

People with aphasia (PWA) typically exhibit deficits in spoken discourse. Discourse analysis is the gold standard approach to assess language deficits beyond sentence level. However, the available discourse assessment tools are biased towards English and European languages and Western culture. Additionally, there is a lack of consensus on which discourse measures to use and limited evidence of the psychometric properties of published discourse measurements. (1) To develop a standardized, norm-referenced, culturally and linguistically appropriate Arabic Discourse Assessment Tool (ADAT); and (2) to examine the psychometric properties of content and construct validity and interrater reliability of different discourse measures elicited using three discourse genres (descriptive, narrative and procedural) in neurotypical control adults and matched PWA. Discourse samples were collected using three novel discourse stimuli that are sensitive to the Arabic language and culture from 70 neurotypical control adults and a matched group of 50 PWA. Transcription agreement was assessed. A standard approach was used to evaluate construct validity and interrater reliability for 16 discourse measures that assess fluency, language productivity, information content, lexical-semantics, lexical diversity, grammatical category, grammatical structure and syntactic complexity. Strong measures were identified based on their psychometric properties, and normative data were established on these measures. Discourse performance of PWA was then examined using the newly developed tool (ADAT). Transcription agreement was extremely high for all discourse stimuli in both groups. Eight discourse measures were proven to have consistently very high construct validity and consistently very good to excellent reliability across the three stimuli in both neurotypical control and aphasia groups: lexical information units, content information units, words per minute, discourse duration, number of different words, number of complete sentences and proportion of open and closed class words. Norms were established on these measures, and cut-off scores of impairments were determined. Other measures showed low construct validity and variable or poor reliability across the two groups. The newly developed, standardized, and norm-referenced tool(ADAT) consist of three discourse stimuli and eight high-quality discourse measures that assess multiple aspects of spoken discourse and were able to differentiate PWA from neurotypical adults consistently. ADAT also includes normative data and cut-off impairment scores. The tool has great potential to enhance clinical practice and research with Arabic speakers. Evidence was provided that not all discourse measures are of high quality, as some are vulnerable to differences between raters, discourse stimuli and groups. Clinicians and researchers can use ADAT for accurate aphasia assessments, better management plans and to monitor therapy effectiveness. ADAT can be further validated in other clinical populations with language impairments. What is already known on the subject Discourse analysis is the gold standard approach to assess language deficits beyond sentence level. However, existing discourse assessment tools are biased towards English and European languages and Western culture. Additionally, there is a lack of consensus on which discourse measures to use in aphasia, and limited evidence of the psychometric properties of published discourse measurements. What this paper adds to existing knowledge A novel, standardized, norm-referenced Arabic Discourse Assessment Tool (ADAT) was developed and validated in this study. ADAT was further validated among PWA. The study provides evidence that not all discourse measures are of high quality and thus should not be used with confidence. Specific measures are vulnerable to the type of stimuli, the rater and/or the tested group. On the other hand, eight discourse measures were identified to be reliable between different raters and across different stimuli for the two groups, and they were able to differentiate the discourse performance of PWA from neurotypical control adults. Normative data derived from neurotypical control adults were established on these strong measures, and the performance of PWA was classified as impaired based on these norms. What are the potential or actual clinical implications of this work? The present study provides a novel, standardized, norm-referenced, validated discourse assessment tool that is culturally and linguistically appropriate for use by Arabic speakers (ADAT). ADAT holds immense potential to enhance clinical practice and research with Arabic speakers. The study also identified strong discourse measures that can be used to assess language productivity, information content, lexical-semantics, lexical diversity, grammatical category, and syntactic complexity for accurate and comprehensive assessments. This will lead to better rehabilitation management by guiding the development of tailored client-centred interventions. ADAT can be utilized in clinical and research settings in PWA and has the potential to be further validated with other clinical populations.