Floor Ceiling Effects Research Articles

Enjoyment of physical activity in rehabilitation settings: Psychometric properties of the eight-item Physical Activity Enjoyment Scale (PACES-8) cross-culturally translated into Danish

Objective: To cross-culturally translate and validate a Danish version of the Physical Activity Enjoyment Scale (PACES-8) for rehabilitation patients. Enjoying physical activity supports rehabilitation patients’ incentives to maintain a physically active lifestyle, and PACES-8 makes enjoyment measurable. Methods and measures: After translation/back-translation, face and content validity were examined by qualitative interviewing four physiotherapists and 12 patients. PACES-8 sum scores range from 8 (lowest) to 56 (highest). Rehabilitation patients (n = 99) responded to PACES-8. Internal consistency and construct validity were examined using explorative factor analysis (EFA), convergent validity with the WHO-5 Wellbeing index, and floor-ceiling effects. Results: PACES-8 covers hedonic and eudaimonic aspects of enjoyment, although some informants expressed that exercising should be for health, not joy. Immediately after various forms of training, respondents’ median PACES-8 score was 51.0, and WHO-5 scores indicated a moderate/high wellbeing for 87.9%. Group-based and outdoor training were more enjoyable than strength training and individual training. Internal consistency showed a Cronbach alpha value of 0.890. EFA revealed a one-factor structure, low convergent validity, and no floor/ceiling effects. Conclusion: The Danish version of PACES-8 shows promising psychometric properties for rehabilitation patients. PACES-8 provides the basis for health professionals and patients to collaborate in identifying enjoyable physical activities.

Reliability and validity of the community balance and mobility scale in individuals with multiple sclerosis.

This study aims to evaluate the reliability and validity of the Community Balance and Mobility Scale (CB&M) in people with multiple sclerosis (PwMS). A total of 65 PwMS (Expanded Disability Status Scale (EDSS) ≤ 5.5) were included in the study. Test-retest, internal consistency (item-total score correlation, Cronbach's alpha coefficient) intra-rater, and inter-rater reliability were investigated for the reliability of the CB&M. For intra-rater and inter-rater reliability, CB&M measurements of 34 PwMS were videotaped. The validity of the CB&M was assessed through criterion (predictive and concurrent validity) and construct validity. Construct validity was evaluated using hypothesis testing which included examining correlations with EDSS, Timed Up and Go Test (TUG), and Dynamic Gait Index (DGI). Test-retest reliability demonstrated a good to excellent correlation (ICC = 0.995, p < 0.001). Cronbach's alpha was 0.971 (p < 0.001). Intra-rater (ICC = 0.993, p < 0.001) and inter-rater reliability (ICC = 0.986, p < 0.001) of the CB&M were also good to excellent. Cohen's kappa range values ​​of the scale vary between 0.958 - 0.665, and the percentage agreement varies between 97% and 75%. For the convergent validity of CB&M, strong correlations were observed with EDSS (r=-0.831, p < 0.001), TUG (r=-0.854, p < 0.001), and DGI (r = 0.865, p < 0.001). Additionally, the CB&M demonstrated an excellent correlation with the BBS (r = 0.907, p < 0.001). The scale exhibited no floor-ceiling effect. CB&M is a reliable and valid tool for assessing balance and mobility in PwMS and offers significant advantages for evaluating balance in PwMS, as it provides comprehensive information about the balance and mobility requirements essential for community living.

Internal Consistency and Floor/Ceiling Effects of the Gross Motor Function Measure for Use with Children Affected by Cancer: A Cross-Sectional Study.

Children/adolescents with cancer can develop adverse effects impacting gross motor function. There is a lack of gross motor function assessment tools that have been validated for this population. The aim of this multicenter cross-sectional study was to preliminary validate the 88-item Gross Motor Function Measure (GMFM-88) for use in children/adolescents with cancer, exploring internal consistency and floor/ceiling effect. Inclusion criteria regarded children/adolescents diagnosed with cancer on treatment or <1 year off therapy. The internal consistency was assessed using Cronbach's α, and the floor-ceiling effects were calculated through percentage. This study involved 217 participants with heterogeneous neoplasm conditions. Internal consistency was good, with a Cronbach's α of 0.989. Floor-ceiling effect analysis reveals that several items obtained a dichotomous scoring distribution in each of the five sub-scales of the GMFM-88. This can be explained by the heterogeneous clinical characteristics of the target population. The preliminary validation of GMFM-88 in a group of children/adolescents affected by cancer suggests that some items are not able to discriminate between different gross motor function levels, and therefore it does not represent an informative tool to measure gross motor function in children with cancer. Future research is needed to define which ones could be more useful for clinical practice.

The Swedish Stroke Self-Efficacy Questionnaire: translation and cross-cultural adaptation

ObjectiveTo translate and cross-culturally adapt the Stroke Self-Efficacy Questionnaire (SSEQ) from English to Swedish and to evaluate psychometric properties of the questionnaire.MethodsA cross-sectional study design, where the translation followed a process including initial translation, synthesis, backward translation, expert committee, and pretest. Content validity was assessed using Content validity index (CVI). Psychometric assessments included floor-ceiling effects and internal consistency.ResultsLanguage and cultural congruence were achieved, and content validity index scores were high (0.923-1). The psychometric evaluations provided acceptable outcomes concerning internal consistency, with Cronbach’s alpha scores for the total scale (0.902), the activities subscale (0.861) and the self-management subscale (0.818) respectively. Ceiling effects were evident, but no floor effects.ConclusionThis study found the Swedish version of the SSEQ promising as a tool for assessment of self-efficacy in a Swedish stroke care setting, although further psychometric assessments are recommended in future studies.

Validation of a patient-reported knee-specific outcome questionnaire specifically intended to assess pain, stiffness, and functional activities in Indians with osteoarthritis knees: an observational cross-sectional study

Background: Patient-reported outcome measurement assessments that are frequently used for knee joint disorders have ceiling effect. This restriction is allegedly not there in New Hindi score. Purpose of this study is to validate New Hindi Score in patients with osteoarthritis knee. Methods: Level II Prospective cohort study was conducted. In pilot study, 20 patients had their comprehension of New Hindi Score assessed. A prospective cohort study involving 200 individuals with osteoarthritis knee Kl grade 2 and 3 was conducted in AIIMS, Rishikesh, Uttarakhand. Patients' overall age 57.76±8.63 years, both mean and SD. There were 125 females &amp; 75 males. Men's mean &amp; SD were 59.52±9.39 while women's 56.70±8.00. All patients were requested to complete WOMAC, KOOS, OKS &amp; New Hindi Score questionnaires. Validity, reliability, repeatability of New Hindi Score for knee function in KOA patients were evaluated. There's no floor ceiling effect. New Hindi Score's validity, responsiveness, and floor ceiling effect were assessed. Validity was measured using the Pearson correlation coefficient. Results: In pilot study participants answered all question accurately. New Hindi Score shows moderate correlation with WOMAC &amp; weak correlation with OKS and KOOS (Pearson coefficients of 0.45, 0.21, and 0.28, respectively) with 95% confidence interval, indicating strong construct validity in primary study. There was no floor or ceiling effect seen. Conclusions: For KOA patients, New Hindi Score exhibits strong levels of validity, reliability, and reliability. As result, it can be effectively applied to research knee function in Indian population.

Parents’ attitudes toward mathematics and Home Numeracy Experiences Questionnaire: evidence for factor structure, reliability, construct validity and measurement invariance in a sample of preschoolers with mild intellectual disabilities

This study aims to validate a parent rating questionnaire of Home Numeracy Experiences (HNE) for the assessment of the frequency of the literacy and numeracy activities that parents use with their children with disabilities. Additionally, this study aims to provide evidence for reliability and validity of the parental attitudes toward mathematics and reading scale (PATM) (LeFevre et al. 2009). The sample of Study 1 comprised 60 couples, while the sample of Study 2 comprised 127 couples. All of them had a child with disabilities aged between 4 to 7 years old we performed six exploratory factor analyses. In Study 2, we performed CFA to confirm the proposed factor structures for the above measures (benchmarks: 1-factor model: χ2=49.423, p = 0.313 > 0.05, x2/df = 1.24; GFI = 0.92; AGFI = 0.87; SRMR = 0.05; CFI = 0.96; RMSEA = 0.05 – direct literacy activities: 1-factor model: x2= 6.128, p = 0.412 > 0.05, x2/df = 0.34; GFI = 0.91; AGFI = 0.88; SRMR = 0.03; CFI = 0.97; RMSEA = 0.06 – fine motor skills: 2-factor model: x2=88.436, p = 0.117 > 0.05, x2/df =1.47; GFI = 0.92; AGFI = 0.89; SRMR = 0.02; CFI = 0.96; RMSEA = 0.05 – general skills: 2-factor model: x2=76.020, p = 0.432 > 0.05, x2/df = 1.81; GFI = 0.90; AGFI = 0.88; SRMR = 0.03; CFI = 0.97; RMSEA = 0.05 and numeracy-related activities: 4-factor model: x2=186.104, p = 0.516 > 0.05, x2/df = 1.55; GFI = 0.90; AGFI = 0.87; SRMR = 0.05; CFI = 0.98; RMSEA = 0.06 and parent’s/caregiver’s attitudes toward mathematics: 3-factor model: x2=74.250, p = 0.207 > 0.05, x2/df = 1.65; GFI = 0.93; AGFI = 0.89; SRMR = 0.06; CFI = 0.98; RMSEA = 0.03). No floor-ceiling effects were observed. Assessment of measurement invariance provided us with strong evidence that the proposed structure is both meaningful for mothers and fathers. A good fit of the data suggested the assessment of all nested invariance models. Results suggested that the Greek adaptation of the Parents’ Attitudes Toward Mathematics and Home Numeracy Experiences Questionnaire is a reliable and valid measure.

Alabama Parenting Questionnaire (Parent Form): Psychometric Properties and Validation in a Population of Greek Parents of Young Children (3–6) with and Without Disabilities

Through this study, we aim to evaluate the psychometric properties, such as factor structure, reliability, and construct validity of the Greek translation of the parent report version of the Alabama Parenting Questionnaire (APQ). Four hundred sixty-six parents were enrolled in the study. Firstly, we extracted four factors with the use of EFA (Principal Components Analysis) in a subsample comprised of n = 294 participants. Afterward, we evaluated the internal four-factor structure (Involvement – Positive Parenting – Inconsistent Discipline – Corporal Punishment), though CFA in the entire sample. All goodness of fit indices generated by CFA were found satisfactory (χ2/df = 1.54 &lt; 2 and p = .213, TLI = 0.976 ≥ 0.95, RMSEA = .027 &lt; 0.08, CFI = 0.95 ≥ 0.90 and SRMR = 0.015 &lt; 0.08). No floor-ceiling effects were observed. Assessment of measurement invariance provided us with strong evidence that the proposed structure is both meaningful and valid in families with a child with a disability, as well. Consequently, the APQ-GR (3–6) is an easily applied and comprehended research tool that allows its use in studies on parental characteristics and practices in both families with and without a child with disabilities rearing.

Cross-cultural adaptation, reliability and validity tests of the Chinese version of the Profile Fitness Mapping neck questionnaire

ObjectiveTo translate and culturally adapt the Profile Fitness Mapping neck questionnaire (ProFitMap-neck) into the Chinese version and evaluate its psychometric properties.MethodsThe procedure of translation and cross-cultural adaptation was performed according to the recommended guidelines. A total of 220 patients with chronic neck pain (CNP) and 100 individuals without neck pain participated in the study. Internal consistency, test-retest reliability, content validity and construct validity were investigated.ResultsThe Chinese version of ProFitMap-neck (CHN-ProFitMap-neck) showed adequate internal consistency (Cronbach’s α = 0.88–0.95). A good test-retest reliability was proven by the intraclass correlation coefficient (ICC3A,1 = 0.78–0.86). Floor-ceiling effects were absent. Exploratory factor analysis revealed 6 factors for the symptom scale and 4 factors for the function scale. The CHN-ProFitMap-neck showed a moderate to high negative correlation with NDI (r = 0.46–0.60, P < 0.01), a small to moderate negative correlation with VAS (r = 0.29–0.36, P < 0.01), and a small to high positive correlation with SF-36 (r = 0.21–0.52, P < 0.01). No significant correlation between the CHN-ProFitMap-neck function scale and VAS (P > 0.05) or the mental health domain of the SF-36 was found (P > 0.05). The CHN-ProFitMap-neck scores were significantly lower in the CNP group than in the non-CNP group (P < 0.01).ConclusionsThe CHN-ProFitMap-neck had acceptable psychometric properties and could be used as a reliable and valid instrument in the assessment of patients with chronic neck pain in mainland China.

The Multiple Sclerosis Intimacy and Sexuality Questionnaire (MSISQ): Validation of the Turkish version in patient with multiple sclerosis

This study aimed to psychometrically evaluate the Turkish version of the Multiple Sclerosis Intimacy and Sexuality Questionnaire (MSISQ-15) in women with MS. The study included 130 women with MS. The Turkish linguistic validation process of the original English MSISQ-15 was performed according to standardized guidelines. Reliability analysis was evaluated with test-retest analysis and intra-class correlation (ICC). Internal consistency between the items was analyzed using the Cronbach's alpha coefficient. Item analysis results were used to assess the contribution of the items to the scale. In evaluating the validity of the scale, the relationship between the MSISQ and the Female Sexual Function Index (FSFI), the Multiple Sclerosis Quality of Life Questionnaire-54 (MSQOL-54), and the Pelvic Organ Prolapse/Urinary Incontinence Sexual Questionnaire (PSIQ-12) was investigated. Psychometric properties were analyzed using internal consistency, test-rest reliability, construct validity, and floor-ceiling effect. The internal consistency of the Turkish MSISQ-15 was strong in terms of both sub-dimension score and the total score (Cronbach's a coefficient > 0.80). The test-retest reliability of the scale was very strong (ICC > 0.90). A medium-high correlation was found between the MSISQ-15 and the MSQOL-54, the FSFI, and the PSIQ-12 (between r = -0.448 and r = -0.798, p < 0.001, respectively). The MSISQ-15 is a comprehensive, reliable, and valid inventory to obtain information about the cause of sexual dysfunction in Turkish women with MS and to evaluate the level of sexual dysfunction. In future studies, it is recommended to examine the sensitivity of the Turkish MSISQ-15 to treatment-related changes.

The Chinese version of the Quality of Life in Childhood Epilepsy Questionnaire-16-C (QOLCE-16-C): translation, validity, and reliability

BackgroundEpilepsy is one of the most common chronic neurological diseases that adversely impact the quality of life of patients and their families. The “Quality of Life of Childhood Epilepsy Questionnaire” (hereinafter referred to as “QOLCE-16”) is a 16-item measure that was designed to assess health-related quality of life (HRQOL) among children with epilepsy. The purpose of the study was to translate and evaluate the psychometric properties of the QOLCE-16.MethodsThe 10 steps of Principles of Good Practices for translation and cultural adaptation of measures were adopted to translate the QOLCE-16 into Chinese. After that, item analysis, floor effect and ceiling effect, internal consistency, test–retest reliabilities, content validity and construct validity were conducted to test its applicability in children with epilepsy in China. A total of 435 native Chinese-speaking parents with children who had epilepsy from one children’s hospital were invited to take part in the study, including a cognitive interview sample of 5 and a validation sample of 430.ResultsA total of 414 objects were enrolled in our study for psychometric testing. The results of the item analysis revealed QOLCE-16-C to have good discrimination, the floor effect and ceiling effect were 0.2% and 1.0% respectively, and each item was significantly related to the total scale (P < 0.001). The Cronbach’s α value was 0.938 and the test–retest reliability was 0.724. For validity, results showed that the QOLCE-16-C had good content validity. Exploratory factor analysis indicated it was reasonable that the QOLCE-16-C consists of four dimensions after rotation. Confirmatory factor analysis demonstrated good construct validity (χ2/df = 1.698, GFI = 0.913, CFI = 0.974, RMSEA = 0.058).ConclusionThe Chinese version of QOLCE-16-C appears to be a culturally appropriate, valid and reliable tool to assess the health-related quality of life of children with epilepsy in China.

Psychometric properties of the Depression Stigma Scale in the Portuguese population and its association with gender and depressive symptomatology

BackgroundStigma is one of the most significant constraints on people living with depression. There is a lack of validated scales in Portugal to measure depression stigma; therefore, the Depression Stigma Scale (DSS) is essential to the depression stigma research in Portugal.MethodsWe developed the adaptation process with the ITC Guidelines for Translation and Adapting Tests taken into consideration. We collected the sample as part of the OSPI program—Optimizing suicide prevention programs and their implementation in Europe, specifically within the application in Portugal, and included 1693 participants. Floor-ceiling effects and response ranges were analyzed, and we calculated Cronbach alphas, and Confirmatory Analysis. Validity evidence was tested with two well-documented hypotheses, using data on gender and depression symptoms.ResultsThe sample was well comparable with the general Portuguese population, indicating its representativeness. We identified a three-factor structure in each subscale (personal and perceived stigma): weak-not-sick, discrimination, and dangerous/unpredictable, with good model fit results. The Cronbach's alphas were satisfactory, and validity was confirmed.ConclusionsThis study established the validity and demonstrated good psychometric properties of the DSS in the Portuguese population. The validation of the DSS can be beneficial in exploring stigma predictors and evaluating the effectiveness of stigma reduction interventions.

Cross-cultural adaptation and psychometric validation of the Indonesian version of the Oxford Hip Score.

AimsThe aim of this study was to perform a cross-cultural adaptation of Oxford Hip Score (OHS) to Indonesian, and to evaluate its psychometric properties.MethodsWe performed a cross-cultural adaptation of Oxford Hip Score into Indonesian language (OHS-ID) and determined its internal consistency, test-retest reliability, measurement error, floor-ceiling effect, responsiveness, and construct validity by hypotheses testing of its correlation with Harris Hip Score (HHS), vsual analogue scale (VAS), and Short Form-36 (SF-36). Adults (> 17 years old) with chronic hip pain (osteoarthritis or osteonecrosis) were included.ResultsA total of 125 patients were included, including 50 total hip arthroplasty (THA) patients with six months follow-up. The OHS questionnaire was translated into Indonesian and showed good internal consistency (Cronbach’s alpha = 0.89) and good reliability (intraclass correlation = 0.98). The standard error of measurement value of 2.11 resulted in minimal detectable change score of 5.8. Ten out of ten (100%) a priori hypotheses were met, confirming the construct validity. A strong correlation was found with two subscales of SF-36 (pain and physical function), HHS (0.94), and VAS (-0.83). OHS-ID also showed good responsiveness for post-THA series. Floor and ceiling effect was not found.ConclusionThe Indonesian version of OHS showed similar reliability and validity with the original OHS. This questionnaire will be suitable to assess chronic hip pain in Indonesian-speaking patients.Cite this article: Bone Jt Open 2021;2(9):765–772.

A Systematic Review of Measurement Properties of Spirituality related Assessment Tools Published in Korean Journals

Purpose: The purpose of this study was to evaluate the measurement properties of spirituality-related assessment tools published in Korean journals.Methods: The databases used to search the literature reporting use of the spirituality-related assessment tools were RISS, NDSL, DBpia, KoreaMed, and KISS. The quality of the measurement properties was evaluated based on the reported internal consistency, content validity, criterion validity, construct validity, reproducibility, responsiveness, floor-ceiling effects and interpretability based on the tools review criteria suggested by Terwee et al.Results: Twenty-five assessment tools (including 7 original Korean versions) were identified from the 208 Korean studies published up to November, 2016. All of the 25 tools reported internal consistency and content validity; construct validity was reported in 21 tools while only six tools had reported on criterion validity. None of the studies reported on the reproducibility, responsiveness, and floor-ceiling effects. Among 25 spirituality-related assessment tools, the spiritual well-being scale was identified as the most commonly used tool for spirituality assessment.Conclusion: Among 25 spirituality-related assessment tools used in Korean studies, all of them satisfied only three criteria out of the eight criteria for measurement properties, internal consistency, content validity, and interpretability. The results of this study provide evidence to develop reliable and valid tools that will satisfy the criteria for measurement properties. In addition, standardized, reliable, and valid assessment tools must be chosen for spirituality-related study.

The longitudinal validity of proxy-reported CHU9D

ObjectivesThe Child Health Utility 9D (CHU9D) currently represents the only preference-based health-related quality-of-life instrument designed exclusively from its inception for application with children. The objective of this study was to examine the construct validity and responsiveness of the proxy-reported (parent) CHU9D in a mental health setting using utility weights derived from an adult and adolescent population, respectively.MethodsThe discriminant validity and convergent validity were examined using the mental health-specific ‘The Strengths and Difficulties Questionnaire’ (SDQ) and the generic KIDSCREEN-27. Responsiveness was assessed by examining the floor-ceiling effects, the magnitude of change over time, and the ability to differentiate between improvement and no improvement.ResultsThe study included 396 children with mental health problems. CHU9D showed good construct validity, with correlation coefficients ranging between 0.329 and 0.571 for SDQ Impact score and KIDSCREEN-27 Psychological Well-being. CHU9D was able to distinguish between groups of children with different levels of mental health problems (p < 0.001). The absolute magnitudes of the group mean differences were larger using adolescent weights. No evidence of a floor/ceiling effect was found at the baseline. A standardized response mean of 0.634–0.654 was found for the children who experienced clinically significant improvements. CHU9D was able to discriminate between children who experienced positive and no health improvements (p < 0.001).ConclusionThis study provides the first evidence on responsiveness for CHU9D in a mental health context. The findings demonstrate that CHU9D is an appropriate HRQOL measure for use in mental health trials. Furthermore, the results show that the preference weights generated from an adolescent population resulted in the larger mean differences between groups.

Safe bicycle riding scales based on the transtheoretical model for adolescents: Development and validation

BackgroundDeaths from bicycle transport have increased by 30% in the past 10 years. This should be considered a problem from various aspects for this reason. Safe bicycle riding concerns not just wearing a helmet; it involves a wide range of matters that must be considered. MethodsThe universe of the study, which is of development and validation design, consisted of fifth, sixth, seventh and eighth grade students (N = 503) enrolled in a middle school located in Istanbul during the 2017–2018 academic year. The data were collected with a 25-item questionnaire on sociodemographic features and bicycle riding behavior, and the Transtheoretical Model of scales. The adolescents in the study group were between the ages of 9–14; 49.5% were female, 50.5% were male. Used in testing for validity and reliability were the Content validity index, exploratory factor analysis, confirmatory factor analysis, floor-ceiling effect, Hotelling's T2, Standard Error of Measurement, the paired sample t-test, and Pearson's correlation. ResultsThe internal consistency reliability coefficients of the scales are α = 0.79 for the Cognitive Change Process Scale, α = 0.82 for the Behavioral Change Process Scale, α = 0.77 for the Pros Scale of Decisional Balance, α = 0.79 for the Cons Scale of Decisional Balance, α = 0.78 for the Self–Efficacy Scale.It was found that the Cons Scale of Decisional Balance mean score was under average, all other scale mean scores were above the average. Of the adolescents, 24.5% were in the precontemplation stage of change regarding safe bicycle riding in the Transtheoretical Model. ConclusionsAdolescents' safe bicycle riding behaviors can be evaluated by using scales that are valid and reliable. With the interventions to be implemented, changes can be achieved in safe bicycle riding behaviors and these changes can be screened with the Transtheoretical Model scales.

Cross-cultural adaptation and psychometric validation of the Indonesian version of the Oswestry Disability Index.

The Oswestry Disability Index (ODI) is one of the most common patient-reported outcome measures used for low back pain (LBP). Since it was not available in Indonesian, this study aimed to perform a cross-cultural adaptation of ODI to Indonesian and evaluate its psychometric properties. We performed a cross-cultural adaptation of ODI v2.1a into Indonesian language (ODI-ID) and determined its internal consistency, test-retest reliability, measurement error, confirmatory factor analysis, floor-ceiling effect, and construct validity by hypotheses testing of its correlation with Short Form-36 (SF-36) and visual analog scale (VAS). Adults (> 17years of age) diagnosed with low back pain were included. A total of 96 subjects were included in this study. The original ODI questionnaire was translated into an Indonesian version and showed a good internal consistency (Cronbach's alpha = 0.90) and good reliability (intraclass correlation = 0.97). The standard error of measurement values of 3.35 resulted in a minimal detectable change score of 9. Nine out of nine (100%) a priori hypotheses were met, confirming the construct validity. A strong correlation was found with the physical component of SF-36 (0.77 and 0.76 for pain and physical function, respectively) and VAS (0.79). Confirmatory factor analysis resulted in a poor but significant fit to the original one-factor structure and the static-dynamic two-factor structure. Floor-ceiling effects were not found. The Indonesian version of ODI displayed similar reliability, validity, and psychometric characteristics to the original ODI. This questionnaire will be a suitable instrument for assessing LBP-related disability for Indonesian-speaking patients.

Cross cultural adaptation, reliability and validity of the Greek version of Identification of Functional Ankle Instability (IdFAI) questionnaire

BackgroundThe objectives of our study were to develop the Greek version of the Identification of Functional Ankle Instability (IdFAI) questionnaire and to evaluate its psychometric properties. MethodsThe IdFAI was translated and adapted into Greek according to the guidelines for cross-cultural adaptation of self report measures. It was tested for test-retest reliability, validity, internal consistency and floor-ceiling effects in 141 participants (54 males, 87 females; 23.5 ± 7.2 years). All participants were asked to fill the Greek IdFAI (IdFAI-GR), the Cumberland Ankle Instability Tool (CAIT), and the Lower Extremity Functional Scale (LEFS), in order to determine construct validity. To determine the test-retest reliability, fifty randomly selected individuals re-filled IdFAI seven days after the first session. ResultsThe IdFAI-GR had high internal consistency (Cronbach alpha = 0.94) and excellent test-retest reliability (ICC2,1 = 0.97; SEM = 0.7). The IdFAI-GR had strong correlation with the CAIT (r = 0.7; p < 0.001) and moderate correlation with the LEFS (r = 0.5; p < 0.001). No ceiling or floor effects were observed. ConclusionThe Greek IdFAI questionnaire has proven to be a valid and reliable instrument to identify functional ankle instability. It can therefore, be used for both clinical and research purposes in Greek-speaking individuals.

Distance Education Attitudes (DEAS) During Covid-19 Crisis: Factor Structure, Reliability and Construct Validity of the Brief DEA Scale in Greek-Speaking SEND Teachers

The aim of this study was to evaluate the psychometric properties (factor structure, reliability and construct validity) of the Brief Distance Education Attitudes (DEA) scale. Four hundred twenty-two SEND teachers filled out socio-demographic data forms and the DEAS. Factors were extracted by EFA (Principal Components Analysis) and confirmed by Analysis of Moment Structures. No floor-ceiling effects were observed. No significant differences of skewness and kurtosis were observed between the two Domains. All goodness of fit indices generated by CFA were found satisfactory (TLI = 0.962 > 0.95, RMSEA = .035 < 0.08, CFI = 0.943 ≥ 0.90, χ2(34) = 57.93, p = .000 and SRMR = 0.034 < 0.08). Cronbach’s alpha value formed at α = .764. SEND teachers’ attitudes towards Efficacy in Distance Education and Difficulties Related to Distance Education are considered as significant factors for the implementation of distance education during COVID-19 crisis. Consequently, universities, education technology corporations and policy makers should take consideration of these factors so as to train SEND teachers’ and support emergency remote-teaching scenarios.

Translation and Validation of the Danish Version of the Zurich Claudication Questionnaire.

Study Design:Validation study.Objectives:To translate and validate the Zurich Claudication Questionnaire (ZCQ) into a Danish version of the disease-specific patient-reported outcome measure (PROM) for patients with lumbar spinal stenosis (LSS), which assesses symptom severity, physical function, and satisfaction after surgery.Method:Translation into a Danish version of the original questionnaire by back- and forward-translating the questionnaire and finally transforming a prefinal test version into a final and cross-cultural adapted version. Validation was performed as a cohort study assessing floor-ceiling effects, internal consistency, test-retest reproducibility, criterion validity, discriminant validity, and responsiveness to change.Results:Fifty-three patients were consecutively included in the study, 53 healthy controls were matched. Floor effect was seen in the postoperative data. Internal consistency, Cronbach’s alpha was good to excellent. Substantial test-retest reproducibility was found using Cohen’s weighted kappa. The Danish ZCQ showed moderate to strong association with similar domains of Oswestry Disability Index, Short Form 36, Euro QoL 5D, visual analogue scale–leg and back. The questionnaire showed significant responsiveness to change and a significant discriminant validity between LSS patients and healthy controls.Conclusion:This study shows the Danish translation of the original ZCQ to be well understood by Danish patients. The Danish version is furthermore a reliable and valid questionnaire, which is responsive to change.

Modeling population and subject-specific growth in a latent trait measured by multiple instruments over time using a hierarchical Bayesian framework

Psychometric growth curve modeling techniques are used to describe a person’s latent ability and how that ability changes over time based on a specific measurement instrument. However, the same instrument cannot always be used over a period of time to measure that latent ability. This is often the case when measuring traits longitudinally in children. Reasons may be that over time some measurement tools that were difficult for young children become too easy as they age resulting in floor effects or ceiling effects or both. We propose a Bayesian hierarchical model for such a scenario. Within the Bayesian model we combine information from multiple instruments used at different age ranges and having different scoring schemes to examine growth in latent ability over time. The model includes between-subject variance and within-subject variance and does not require linking item specific difficulty between the measurement tools. The model’s utility is demonstrated on a study of language ability in children from ages one to ten who are hard of hearing where measurement tool specific growth and subject-specific growth are shown in addition to a group level latent growth curve comparing the hard of hearing children to children with normal hearing.