Test-retest Reliability Correlation Research Articles

Validity and reliability of the Turkish version of the patient on hemodialysis resilience scale.

The study aims to evaluate the validity and reliability of the hemodialysis resilience scale (PHRS) in the Turkish population. A cross-sectional methodologic study involved 136 hemodialysis patients at two dialysis centers affiliated with a foundation university in Turkey. The updated guidelines for the Intercultural Scale Adaptation Stages, Language, and Culture Adaptation were followed. Cronbach's α of the PHRS-Tr was 0.94. A three-factor structure was extracted, namely "the pursuit of positive meaning in the present," "building the will to live through close human relationships," and "acceptance of hemodialysis as a part of daily life" explaining 66.82% of the total variance. Test-retest reliability was conducted with 50 patients within the sample 2 weeks after the first application. The correlation coefficient for test-retest reliability was r = 0.680. The study results indicate that the PHRS-Tr is a valid and reliable tool for assessing resilience status in Turkish hemodialysis patients.

Development and validation of a scale for the assessment of the knowledge-attitude-practice of parents towards children snoring

BackgroundChildren Snoring is a common childhood disorder that affects the growth and development of children and is detrimental to their health. Increasing awareness of Children Snoring among parents is important.AimTo develop the Knowledge-Attitude-Practice of Parents towards Children Snoring Scale and test the reliability and validity of the scale.MethodsThe development of the tool was divided into two phases involving 1257 parents from China. In the first phase, an initial project bank was created through a literature review. This was followed by a Delphi expert consultation, group discussion and pre-survey. The second stage screened the items and conducted an exploratory factor analysis, then conducted a confirmatory factor analysis and tested for reliability and validity.ResultsSupport was found for the 25-item Knowledge-Attitude-Practice toward Children Snoring scale. Exploratory and confirmatory factor analyses provide support for four subscales: (parental basic cognition toward Children Snoring; parents’ perception of complications of Children Snoring; parents’ attitude towards Children Snoring; parents’ concern and prevention of Children Snoring). Internal consistency for the total scale was high (Cronbach’s α = 0.93). The intraclass correlation coefficient of test-retest reliability was 0.92 (95%CI: 0.85 to 0.95), which provided support for the stability of the scale.ConclusionThe Knowledge-Attitude-Practice of Parents towards Children Snoring scale shows promise as a measure that may be used by medical workers and community children’s health managers.

Reliability and Validity of the Turkish Translation of the PedsQL™ 3.0 Neuromuscular Module for 2-to 4-Year-Olds in Spinal Muscular Atrophy.

The Pediatric Quality of Life Inventory™ (PedsQL™) Neuromuscular Module (PedsQL™ 3.0 NM) evaluates the health-related quality of life in children who are affected by neuromuscular diseases. This study's aim is to assess the adaptation of the PedsQL™ 3.0 NM Turkish version (PedsQL™ 3.0 NM-TR) for 2- to 4-year-olds in spinal muscular atrophy (SMA). The procedure of translating the PedsQL™ 3.0 NM into Turkish was conducted in accordance with the translation methodology outlined by the PedsQL™ measurement model. The PedsQL™ 3.0 NM-TR was administered to 54 parents of children with SMA aged 2 to 4 years. The test-retest reliability and intraclass correlation coefficient (ICC) were measured for reliability analysis. Cronbach's α coefficient and item score correlations were calculated for internal consistency. Concurrent construct validity was evaluated by Pearson correlations between the outcomes of the PedsQL™ 4.0 Generic Core Scale (PedsQL™ 4.0 GCS) and the PedsQL™ 3.0 NM. The PedsQL™ 3.0 NM-TR total score shows excellent reliability. The Cronbach's α values for the PedsQL™ 3.0 NM ranged between 0.871 and 0.906, while those for the PedsQL™ 4.0 GCS ranged between 0.843 and 0.897. Test-retest ICC values for the PedsQL™ 3.0 NM-TR ranged between 0.812 and 0.917, and for the PedsQL™ 4.0 GCS ranged between 0.773 and 0.899. The relationship between the PedsQL™ 3.0 NM-TR and the subscores of the PedsQL™ 4.0 GCS demonstrated a range of correlations from excellent to fair, indicating the interplay between two scales. This study established the PedsQL™ 3.0 NM-TR as reliable, valid, and feasible for use in children aged 2 to 4 years with SMA.

Validating the Use of Percent Grammatical Utterances for Assessing Mandarin-Speaking Children's Grammatical Skill: Evidence From 3-Year-Olds.

The study examined the use of percent grammatical utterances (PGUs) for assessing grammatical skills in Mandarin-speaking 3-year-old children. Participants were 30 Mandarin-speaking 3-year-olds with typical development. Language samples were collected in two visits for each child using a picture description task. Children were asked to talk about 16 pictures in response to questions and prompts at each visit. Pictures for the language sample collection were identical across the visits. PGUs were computed, and the grammatical errors that children produced in the task were coded and tallied for error types at each visit. Test-retest reliability, split-half reliability, and concurrent criterion validity of PGUs were evaluated. The mean PGU level was approximately 78% at Visit 1 and 81% at Visit 2, both of which were significantly below the mastery level (i.e., 90%). The correlation coefficient for test-retest reliability of PGU was large (r = .70, p < .01); the correlation coefficient for split-half reliability was medium at Visit 1 (r = .47, p < .01) and large (r = .65, p < .01) at Visit 2. In addition, the correlation coefficient for concurrent criterion validity of PGU was medium for both visits (rs ≥ .35, ps ≤ .03). The ranking and proportion of each error type were similar between the visits. The initial evidence from psychometric properties suggests that PGU computed from the picture description task is a reliable and valid measure for evaluating grammatical skills in Mandarin-speaking 3-year-old children. https://doi.org/10.23641/asha.25395499.

Facioscapulohumeral muscular dystrophy Health Index: Japanese translation and validation study

Purpose The Facioscapulohumeral Muscular Dystrophy Health Index (FSHD-HI) is a patient-reported outcome measure developed for patients with FSHD. This study aimed to translate the FSHD-HI into Japanese (FSHD-HI-J), evaluate cultural adaptation, and examine its psychometric properties. Materials and methods We created two forward translations, integrated them into a single Japanese version, and evaluated the back-translated version of the FSHD-HI. After finalizing the translation and cultural adaptation, we conducted a survey of 66 patients with FSHD to examine the reliability and validity of the FSHD-HI-J. For psychometric evaluations, we used Cronbach’s alpha to assess internal consistency, the intraclass correlation coefficient (ICC) for test-retest reliability, and assessed validity based on the associations between FSHD-HI-J, clinical variables, and quality of life measures. Results The FSHD-HI-J was found to be clinically relevant, indicating high internal consistency and test-retest reliability (ICC = 0.92 [95% confidence interval: 0.86-0.95] for the total score), as well as significant associations with clinical variables (D4Z4 repeats and functional impairment) and other quality of life measures (|rho| = 0.25-0.73). Conclusions The FSHD-HI-J is a valid and reliable patient-reported outcome measure for Japanese patients with FSHD. This validated, disease-specific patient-reported outcome is essential for future clinical practice and clinical trials.

Translation and cross-cultural adaptation of Polish version of Neuropathic Pain Questionnaire (NPQ-PL) and its comparisons with different questionnaires.

The aim of this study was to assess the validity and reliability of the Polish version of the Neuropathic Pain Questionnaire (NPQ-PL), and to compare it to other diagnostic tools. Neuropathic pain is a burdensome condition, of which the exact prevalence is difficult to estimate. During initial screening, pain questionnaires are helpful in alerting clinicians about the need for further evaluation. The NPQ-PL has been developed following the guidelines for translation and cultural adaptation. A total of 140 patients with chronic pain (ChP), 90 with neuropathic pain (NP), and 50 with nociceptive pain (NoP), were enrolled into this study. The study group consisted of 60.71% women and 39.29% men; the mean age of patients (standard deviation, SD) was 53.22 years (15.81), and the average NPQ-PL score (SD) was 0.49 (1.27). Statistically significant relationships were found between higher age distribution and greater pain intensity in the NP group compared to the NoP group. There were also significant differences in pain levels between people of different ages, with the predominance in the elderly. Cronbach's alpha coefficient of the whole questionnaire was 0.85 and the intraclass correlation coefficient (ICC) for test-retest reliability was 0.635. Using receiver-operating characteristic (ROC) curve analysis, the area under the curve (AUC) was 0.97 and the best cut-off value was 0.002, which resulted in the highest sensitivity (93.3%) and specificity (96.0%). The NPQ-PL is a valid tool for discriminating between neuropathic and nociceptive pain. It can be used by physicians of various disciplines when assessing patients with ChP of various origins.

Simplifying the Understanding and Measurement of Mental Disorders Thru a Comprehensive Framework of Psychosocial Health

The assessment of mental health and mental disorders has undergone extensive exploration within the field of psychology, resulting in various models and approaches. In addition to traditional ways like the Diagnostic and Statistical Manual of Mental Disorders, psychologists have proposed alternative perspectives for evaluating mental health. One such innovative approach is the psychosocial health model, which defines mental well-being as sexual, emotional, social, environmental, cognitive, religious, moral, and spiritual satisfaction. This paper presents four consecutive studies aimed at developing and validating a new scale, Sukoon Psychosocial Illness Scale (SPIS), to measure psychosocial illness and its sub-factors based on the model of psychosocial health. SPIS was developed and validated through four sequential studies involving 684 participants. Rigorous exploratory and confirmatory factor analyses were employed to establish content and construct validity. Convergent and discriminant validity were assessed by examining associations with psychological distress and overall psychosocial health. Reliability was evaluated using internal consistency, test-retest reliability, and item-total and item-scale correlations. The results of the study confirm the high reliability and validity of SPIS. This refined instrument consists of 21 items presented in English, employing a 7-point Likert scale for responses. The scale comprises six distinct sub-scales, namely emotional problems, sexual problems, religious and moral problems, social problems, spiritual problems, and professional problems. SPIS emerges as a promising tool for future researchers and clinicians, offering a fresh perspective on mental disorders through the comprehensive lens of psychosocial health. This instrument contributes to the evolving landscape of mental health assessment and underscores the importance of considering diverse dimensions for a holistic understanding of psychosocial well-being.

Preliminary evidence for the validity of the Brief Post-Secondary Student Stressors Index (Brief-PSSI): A cross-sectional psychometric assessment.

The brief version of the Post-Secondary Student Stressors Index (Brief-PSSI) was developed in order to improve the usability of the instrument as a method for evaluating the severity and frequency of stressors faced by post-secondary students. While the original 46-item instrument has been thoroughly psychometrically validated and successfully used among student populations, the length of the instrument limits its utility. Providing a valid, shortened version of the PSSI will enable institutions to include the tool on existing online surveys currently being deployed to surveil the mental health and wellbeing of their students. This study reports preliminary evidence in support of the validity and reliability of the Brief-PSSI using a cross-sectional pilot sample of students attending an Ontario university in 2022. A total of 349 participants (average age 25 (SD = 7.7), range 19-60) completed the first survey, while 149 completed the follow-up survey (average age of 26 (SD = 7.7), range 17-60). Evidence of internal structure, relations to other variables, and of test-retest reliability was assessed according to established index validation guidelines, including the specification of multiple-indicator, multiple-cause models, and Spearman's rho correlation coefficients. Results provide preliminary support for the validity and reliability of the tool, which demonstrated acceptable goodness-of-fit statistics, statistically significant relationships with like constructs in the hypothesized directions, and good test-retest reliability correlation coefficients. The Brief-PSSI is a useful tool for evaluating the sources of stress among post-secondary students, assessing both the severity of stress experienced and frequency with which each stressor occurred. Future research should explore the practical utility of adding the Brief-PSSI to existing survey assessments as well as pursue the continued collection of validation evidence for the tool among varied student populations.

Adaptation of the Social Determinants of Health Scale for University Students to Turkish: A Validity and Reliability Study

Aim: Focusing, researching, identifying and producing solutions for the social health needs of university students is an important step in terms of individual and public health. The main purpose of this study is to make the Turkish adaptation of the social determinants of health scale and psychometric analyses to identify university students who are at risk for their social health needs and to solve their problems. Method: The social determinants of health scale for university students was administered to 322 students. For the validity of the scale, content validity index, confirmatory factor analysis, similarity, and discriminant validity coefficients were used, while for reliability, item-total correlations, internal consistency coefficient, and test-retest analysis were utilized. Results: The content validity index of the Turkish form of the social determinants of health scale for university students was found to be 0.89, and it was decided that there was a consensus among experts. The test-retest reliability correlation was 0.81 and the Cronbach alpha reliability coefficient was 0.71, which was found to be a reliable scale. The scale, which consists of three sub-dimensions measuring general social health needs, social health needs of university students, and promotive social health factors, was compatible with its original form. Conclusion: The social determinants of the health scale for university students were found to be valid and reliable for Turkish culture. It is thought that it will be useful in determining the social health needs of university students.

Cross-cultural adaptation, reliability and validity of the Greek version of the Movement Imagery Questionnaire-3 (MIQ-3)

Abstract Objectives Motor imagery is widely used to enhance patients’ response to treatment via cognitive and neurophysiological processes. As a result, cross-cultural validation of the Movement Imagery Questionnaire-3 (MIQ-3) in the Greek population was deemed necessary. Methods The cross-cultural adaptation method in Greek was followed for the MIQ-3. It was then administered to 150 participants and its face, construct validity (exploratory factor analysis and known-groups validity), test-retest reliability, and internal consistency were assessed. Results The MIQ-3 demonstrated excellent internal consistency (Cronbach’s α=0.90). The intraclass correlation coefficients (ICC) for test-retest reliability of each factor were low: ICC=0.049−0.293. However, the standard error of the measurement (SEM) data was within acceptable limits (13.5–17.2 % of the grand mean) for all three sub-sections of the MIQ-3. Factor analysis confirmed the three-factor structure of the questionnaire. No differences between male and female participants or those with different levels of athletic involvement (intensity of physical activity and practice level) were identified. Conclusions The MIQ-3 appears to be a valid instrument that can be used to assess motor imagery in a Greek population. It can be uniformly applied to participants of different sexes and athletic involvement. Its reliability, though, requires further research.

Comparison of Eye Tracking and Teller Acuity Cards for Visual Acuity Assessment in Pediatric Cortical/Cerebral Visual Impairment

To compare eye tracking and Teller acuity cards (TAC) for assessment of visual acuity in children with cortical, or cerebral, visual impairment (CVI). Reliability and validity study. We recruited 41 children with CVI from a single academic pediatric neuro-ophthalmology clinic. All children performed eye tracking to measure visual acuity, and 26 children completed TAC assessment by a masked examiner. Additionally, 2 pediatric neuro-ophthalmologists graded visual behavior using the 6-level Visual Behavior Scale (VBS). Eye tracking and TAC were performed at baseline and at 1 month. Test-retest reliability of eye tracking and TAC were assessed using the intraclass correlation coefficient (ICC). Eye tracking and TAC visual acuities were correlated with one another and VBS scores using the Spearman correlation coefficient. Test-retest reliability was excellent for eye tracking measurement of visual acuity (ICC=0.81, P < .0001). For pediatric CVI, TAC test-retest reliability was fair (ICC=0.42, P=.04). There was a moderate correlation between eye tracking and TAC (r=0.43, P=.03) and between TAC and VBS score (r=0.50, P=.009), and a strong correlation between eye tracking grating acuity and VBS score (r=0.72, P < .0001). In our cohort of children with CVI, grating acuity measured by eye tracking demonstrated higher test-retest reliability and stronger correlation with pediatric neuro-ophthalmologic assessment of visual behavior than Teller acuity. Objective determination of gaze direction by an eye tracking camera may be more accurate than human assessment in this population. Future research is needed to determine the optimal methods of longitudinal assessment of visual function and functional vision in children with CVI.

Turkish adaptation of the self-stigma of stuttering scale (4S): Study of validity and reliability (4S-TR)

PurposeThis study aimed to adapt the Self-Stigma of Stuttering Scale (4S) into Turkish and evaluate its factor structure, reliability, and validity in Turkish culture. MethodsThe original 4S scale was translated into Turkish (4S-TR) using a forward-backward translation technique and was administered to 350 adults who stutter (AWS). To discover latent variables evaluated on the scale, two-factor analyses were performed. Internal consistency and temporal stability were calculated to ensure reliability. Test-retest reliability correlation scores were calculated with multiple applications of the scale within about two weeks. To verify construct validity, participants also completed the Turkish versions of the Self-Esteem Rating Scale-Short Form (BSDÖ-KF) and the Satisfaction with Life Scale(YDÖ). ResultsThe explanatory factor analysis showed three factors explaining 74.76 % of the total variance. The findings were also validated by confirmatory factor analysis. High levels of internal consistency (r = .89) and test-retest reliability (r = .96) were obtained. In terms of construct validity, our findings revealed that self-stigma has a significant negative correlation with self-esteem (r = −.41) and life satisfaction (r = −.38) as was predicted. ConclusionsThe findings demonstrate preliminary evidence that the 4S-TR is a viable and valid instrument for self-stigma evaluation in three domains (stigma awareness, stereotype agreement, and self-concurrence). The 4S-TR can be applied for research and clinical purposes in Turkish.

ZİHİN KURAMI GÖREV BATARYASI (TOMTB) ’NIN 3-5 YAŞ ÇOCUKLARI İÇİN GEÇERLİK VE GÜVENİRLİK ÇALIŞMASI

This study was conducted for the validity and reliability study of the Theory of Mind Task Battery (TOMTB) for 3-5 year old children. The study was designed in the general survey model, one of the quantitative research. The study group consists of 310 children in the 3-5 age group attending kindergartens affiliated to the Ministry of National Education in Konya City Centre in the 2019-2020 academic year. Theory of Mind Task Battery (TOMTB) and General Information Form were used to collect the research data. Content validity (expert opinion) and construct validity (confirmatory factor analysis) were examined for the validity studies of the Theory of Mind Task Battery (TOMTB). The reliability of the measurements in terms of internal consistency was calculated with KR-20, test-retest reliability and Pearson Correlation Coefficient. The analyses showed that the Theory of Mind Task Battery (TOMTB) is a valid and reliable test for 3-5 year old children.

Validation study of new clinical scoring - "Apollo Clinical Scoring system" for bladder pain syndrome/interstitial cystitis and comparison of outcome with standard "O'Leary-Sant score".

Validation of the recently published newer clinical scoring system for bladder pain syndrome/interstitial cystitis and comparison of the results with the pre-existing standard O'Leary-Sant score. The symptoms are our primary guide to disease severity analysis, treatment, and response monitoring. The combined ICSI/ICPI (O'Leary-Sant Interstitial Cystitis Symptom and Problem Index) consist of a four-item symptom and problem index focusing on urgency, frequency, nocturia, and pain. A new scale, assigning more weight to pain and nocturia and adding the domains of sexual dysfunction and psychological impact, has been published by one of the authors (El Khoudary et al. J Women's Health 2002. 18:1361-1368; 7). This is a prospective study conducted to validate a newer clinical scoring system, namedht e 'Apollo Clinical Scoring' (ACS) system for patients with bladder pain syndrome/ interstitial cystitis (BPS/IC), and to compare its outcome with the simultaneously applied standard O'Leary-Sant (OLS) score. Thirty-five patients of BPS/IC diagnosed using the ESSIC definition were enrolled in the study and followed for 6 months. Intraclass correlation coefficient (ICC) for test-retest reliability, and Cronbach's α for measure of internal consistency, were applied to both scoring systems. Intraclass correlation coefficient for ACS was 0.715 and for OLS was 0.689. Cronbach's α for ACS was 0.736 and for OLS was 0.698. The present study suggests that the recently devised Apollo Clinical Scoring (ACS) system for patients of BPS/IC is internally consistent and a reliable scoring system. When compared with OLS in parallel setting, the newer ACS appeared to be marginally better.

Exploring differences and similarities of EQ-5D-3L, EQ-5D-5L and WHOQOL-OLD in recipients of aged care services in Germany.

European countries more than ever face shifts towards aging societies with accompanying challenges for health and aged care services. Economic evaluation has mainly relied on health measures such as EQ-5D across populations and conditions. We want to know how well the EQ-5D performs in the target population to avoid bias to the disadvantage of older adults and care-dependents. Therefore, we aim to explore differences and similarities of EQ-5D-3L and EQ-5D-5L in comparison to the old-age specific WHOQOL-OLD instrument in a sample of older adults receiving aged care services. We collected data from n = 329 older adults (≥65 years) receiving aged care services in Germany; the majority was at least 80 years and had varying care needs. We assessed instruments' feasibility, test-retest reliability, instruments' association and sensitivity to known-group differences. In terms of feasibility and test-retest reliability both EQ-5D versions performed better than the WHOQOL-OLD. All measures differentiated well between groups based on aspects of general health and care levels. The analysis of relationship between measures indicated that EQ-5D and WHOQOL-OLD assess partially overlapping, but distinct constructs. We found no clear evidence of superiority of either EQ-5D version over the other. The EQ-5D-5L performed better in terms of test-retest reliability and stronger correlations with WHOQOL-OLD facets. We conclude that using the WHOQOL-OLD alongside EQ-5D in this sample added further information on different aspects of quality of life.

GEBELİKTE VÜCUT ALGISI ÖLÇEĞİNİN TÜRKÇE UYARLAMASI: GEÇERLİK VE GÜVENİRLİK ÇALIŞMASI

The objective of this study was to adapt the Body Understanding Measure for Pregnancy Scale into the Turkish language and to examine the psychometric properties in pregnancy. The methodological study was conducted with 508 healthy pregnant women. Language validation, content validation, and pilot scheme are the three phases of cultural adaptation of the scale. The construct validity of the scale was analyzed using both Exploratory and Confirmatory Factor Analyses. The reliability of the scale was tested using parallel-form reliability, test-retest reliability, Cronbach's α coefficient of internal consistency, and item-total correlation. The Confirmatory Factor Analysis conducted supports the three-factor structure of the scale that is constructed by Exploratory Factor Analysis. We determined Cronbach’s α coefficient of internal consistency to vary between 0.78 and 0.88 for the scale total and the subscales. Besides, there was a high correlation between the parallel-form reliability, test-retest reliability, and item-total correlation of the scale. The Turkish version of Body Understanding Measure for Pregnancy Scale is a validated and reliable tool designed to evaluate the body image concerns of Turkish pregnant women.

Psychometric Properties of a Brief Health Literacy Instrument (HL-8) Among 18-65-Year-Old Iranians: A Scale Developed for Online Surveys

Background: A short, valid, and reliable instrument is required for the easy assessment of health literacy in online surveys. Objectives: In this study, we investigated the validity and reliability of the Persian version of the 8-item Health Literacy Questionnaire as a brief online survey tool in 18-65-year-old Iranians. Methods: This was a cross-sectional study undertaken in thirty-one provinces of Iran. A total of 2374 Iranian people with age 18 - 65 years participated in this study. To ensure the quality of English-to-Persian translation, the process of forward-backward translation was conducted. The scale’s factor structure was assessed using a series of exploratory factor analyses (EFA) and confirmatory factor analyses (CFA). In order to assess reliability, Cronbach’s alpha estimation, test-retest reliability, and Spearman correlation coefficients were applied. Results: Most of the participants were male (1610, 67.8%), married (1610, 67.8%), and 31 - 59 years old (1672, 70.4%). Cronbach’s alpha coefficients for the factors of finding &amp; evaluating, understanding, decision making, interaction, and the questionnaire as a whole were 0.76, 0.46, 0.75, 0.82, and 0.59, respectively. Test-retest correlation coefficients for these factors and the questionnaire as a whole were 0.85, 0.94, 0.75, 0.82, and 0.86, respectively. Based on CFA, the four-factor structure of the 8-item health literacy (HL) fitted the data well. Conclusions: The validity and reliability of the online version of the Persian 8-item Health Literacy Questionnaire to measure the HL of the public were approved. This short online tool can be helpful for future online survey studies on the health literacy of Persian-language populations at a large scale.

Psychometric Assessment of the Applied Mindfulness Process Scale (AMPS) Among a Sample of Women in Treatment for Substance Use Disorder

ObjectivesThe Applied Mindfulness Process Scale (AMPS) is a measure used to quantify the level at which individuals apply learned mindfulness skills during and after a mindfulness-based intervention (MBI). The AMPS was previously developed and validated among individuals with mindfulness experience and in good health. The utility of the AMPS among individuals receiving an MBI for a clinical disorder has not been examined.MethodWe tested the reliability, nomological validity, and incremental validity of the AMPS in a sample of women with substance use disorder (SUD) engaged in an MBI (n=100).ResultsAMPS and its subscales displayed adequate internal consistency reliability (Cronbach’s alpha range = 0.80–0.97) at each assessment, and test-retest reliability correlations were small to moderate in magnitude (Spearman’s ρ range = 0.22–0.74). AMPS scores averaged across assessments correlated with conceptually related measures in the expected directions at post-intervention (Five Facet Mindfulness Questionnaire, (FFMQ,) r = 0.44, p < 0.01; Perceived Stress Scale, PSS, (PSS) r = −0.30, p < 0.01; Difficulties with Emotion Regulation Scale, (DERS,) r = −0.48, p < 0.01). AMPS explained variance in DERS beyond conventional mindfulness measures (MBI class attendance, mindfulness practice effort, FFMQ) at post-intervention (β = −0.32, p < 0.05).ConclusionsThe AMPS broadens the ability to capture behavioral aspects associated with therapeutic change that are distinct from conventional measures of practice quantity and mindfulness disposition. The measure yields predictive value for emotion dysregulation, a common target of MBIs. Factor analytic work is needed in clinical, novice meditator samples.PreregistrationThis study was not preregistered.

Development and validation of a questionnaire to measure the severity of pain, functional limitations, and reduction of sports ability for german-speaking patients with osteochondral lesions of the ankle (OCLA-G)

BackgroundThere is no patient-reported functional scale specific for osteochondral lesion of the ankle (OCLA). Therefore, the objectives of this study were to develop a questionnaire that measures symptom severity, function, and sports capacity in patients with osteochondral lesions of the ankle and to determine the psychometric properties of the tool in German language (OCLA-G).MethodsThe OCLA-G questionnaire was developed according to the COSMIN guidelines. Scalable items were generated from a literature search, based on an evaluation of 71 own OCLA patients, and from expert opinions. Following a twofold item reduction the questionnaire underwent explorative data analysis and principal component analysis. Validity and reliability were analysed in four groups of participants (40 patients with OCLA, 40 patients with other foot and ankle injuries, 40 asymptomatic athletes serving as a population at risk, and 40 asymptomatic persons playing sports not at risk). The minimum age for participation in the study was set at 18 years. The mean age was 39.3 ± 15.1 years.ResultsThe final OCLA-G questionnaire consists of eight and five questions to mirror activities of daily life (ADL) and sports, respectively. Excellent internal consistency (Cronbach’s α = 0.950 for the ADL subscore and 0.965 for the sport subscale, respectively) was found. Spearman’s rank correlation coefficients for test-retest reliability were 0.992 for the ADL subscore and 0.999 for the sport subscale (p < 0.001). The results of the exploratory and confirmatory factor analyses indicated that item difficulty was between 23.4 and 62.8. The Pearson correlation for the OCLA subscales ADL and sport was 0.853 (p < 0.001). Construct validity as tested against the SF-12 questionnaire subscales (Physical and Mental component scale) were r = -0.164 to -0.663 (p < 0.05). Statistically, there was no ADL and sport OCLA mean score difference between OCLA patients and patients with other foot and ankle injuries (p = 0.993 and 0.179, respectively), but both groups differed from the uninjured control groups (p < 0.001). There were no ceiling or floor effects.ConclusionsThe OCLA-G was successfully developed as the first patient reported and injury specific outcome scale to measure the impact of OCLA induced symptoms on activities of daily living and sport. This study provides evidence for the reliability and validity of the OCLA-G assessing patients with OCLA.Trial registrationThe registration trial number is DRKS00009401 on DRKS. ‘Retrospectively registered’. Date of registration: 10/12/2015.

Measuring residual limb health in persons with upper limb amputation: Modifications of the Prosthetic Evaluation Questionnaire residual limb health scale.

Assessing the user perspective on residual limb health problems is particularly important for amputation care, given the relationship between residual limb health and prosthetic satisfaction. Only 1 measure, the Residual Limb Health scale of the Prosthetic Evaluation Questionnaire (PEQ) has been validated for use in lower limb amputation, but not examined in persons with upper limb amputation (ULA). The objective of this study was to examine the psychometric properties of a modified PEQ Residual Limb Health scale in a sample of persons with ULA. The study involved a telephone survey of 392 prosthesis users with ULA, with a 40-person retest sample. The PEQ item response scale was modified to a Likert scale. The item set and instructions were refined in cognitive and pilot testing. Descriptive analyses characterized the prevalence of residual limb issues. Factor analyses and Rasch analyses evaluated unidimensionality, monotonicity, item fit, differential item functioning, and reliability. Test-retest reliability was assessed by an intraclass correlation coefficient. Sweating and prosthesis odor were prevalent at 90.7% and 72.5%, respectively; blisters/sores (12.1%) and ingrown hairs (7.7%) were the least prevalent problems. Response categories were dichotomized for 3 items and trichotomized for 3 items to improve monotonicity. After adjusting for residual correlations, confirmatory factor analyses showed acceptable fit (comparative fit index = 0.984, Tucker-Lewis index = 0.970, and root mean square error approximation = 0.032). Person reliability was 0.65. No items had moderate-to-severe differential item functioning by age or sex. Intraclass correlation coefficient for test-retest reliability was 0.87 (95% CI, 0.76-0.93). The modified scale had excellent structural validity, fair person reliability, very good test-retest reliability, and no floor or ceiling effects. The scale is recommended for use with persons with wrist disarticulation, transradial amputation, elbow disarticulation, and above-elbow amputation.