Test-retest Reliability For Subscales Research Articles

Validation of the newly developed Sleep Screening Questionnaire Children and Adolescents (SSQ-CA) with objective sleep measures

ObjectivesObjectively validated pediatric sleep questionnaires covering a broader age range and different sleep disturbances are lacking, therefore we developed the Sleep Screening Questionnaire Children and Adolescents (SSQ-CA) and compared it with objective sleep parameters. MethodsThis child-reported questionnaire was developed by a multidisciplinary panel and face validated. In a cross-sectional prospective design, participants aged 6–17, answered the questionnaire twice with 21–28 days in between, wore actigraphy (AG) and kept a sleep diary for seven nights and home-polysomnography (PSG) for one of these nights. Exploratory factor analyses (EFA), reliability and validity assessments were performed. ResultsOf the 139 participants, 128 (F:47.7%, AG: n = 128, PSG: n = 59), were included in the analyses. Mean age: 11.3 years (SD: 2.9). EFA revealed 11 factors and 40 items loading above r = 0.4. Subscale internal consistency: 0.54–0.92. Subscale test-retest reliability: r = 0.71–0.87. Total sleep time (TST) from SSQ-CA on weekdays correlated with PSG (r = 0.48, p = 0.001) and with AG (r = 0.75, p < 0.001). The subscale total score for “Sleep duration and latency” correlated with TST from AG (r = −0.19, p = 0.03) and sleep latency (r = 0.31, p < 0.001), but not for PSG variables. The subscale “Awakenings” showed no correlation with objective measures whereas “Circadian rhythm” correlated to AG-derived mid-sleep time (r = 0.34, p < 0.001). ConclusionsThe SSQ-CA shows adequate reliability for the 6–17-year-olds and acceptable criterion validity for two subscales. It appears to be a useful tool for screening for sleep disturbances in combination with objective tools as the subjective and objective parameters seem to uncover different aspects of sleep.

Adaptation and evaluation of the neighborhood environment walkability scale for youth for Chinese children (NEWS-CC)

BackgroundThe physical activity-environment relationship has been infrequently investigated in Chinese children. Reliable and valid environmental measures specific to the age group and the local context are crucial for better understanding this relationship. The purposes of this study were to adapt the Neighborhood Environment Walkability Scale for youth (NEWS-Y) for Chinese children (termed NEWS-CC), and to examine the reliability and factorial validity of the NEWS-CC.MethodsThe development of the NEWS-CC involved the translation of the NEWS-Y to Chinese and the addition of nine new items capturing Hong Kong specific environmental attributes which were generated in our previous study. A total of 953 Hong Kong children aged 9–14 years volunteered to complete the NEWS-CC twice with 7–14 days apart. Confirmatory factor analysis (CFA) was performed to examine the factorial validity of the NEWS-CC. Test-retest reliability of subscales and individual items in the NEWS-CC was examined by intraclass correlation coefficients (ICCs).ResultsThe CFA identified a 7-factor measurement model for the NEWS-CC which fitted the data well, with an additional “pollution” factor not included in the original NEWS-Y. The final NEWS-CC consisted of 67 items in 10 subscales. The test-retest reliability of subscales (range of ICC = 0.47–0.86) and individual items (range of ICC = 0.41–0.79) in the final NEWS-CC was moderate to good.ConclusionThe results of this study support the psychometric properties of the NEWS-CC. The NEWS-CC can be used to assess physical activity-related neighborhood environment among children in Hong Kong, as well as cities that share similar urban forms with Hong Kong.

Psychometric properties of the Turkish version of the Behavioral Emotion Regulation Questionnaire (BERQ)

The Behavioral Emotion Regulation Questionnaire (BERQ) is a self-report measure of the behavioral strategies individuals use to regulate emotions in response to stressful or negative events. The purpose of the present study was to report on the psychometric properties of the Turkish version. The sample was recruited through courses at a semi-private university in Turkey and through social-media announcements. A sample of 320 adults (81.9% females, 18.1% males) with a mean age of 22.03 (SD = 2.73) completed the Turkish translation of the BERQ, the Emotion Regulation Questionnaire, the Difficulties in Emotion Regulation Questionnaire and the Brief Symptom Inventory. Exploratory factor analysis indicated that the Turkish version replicated the 5-factor structure of the original version; yet, a confirmatory factor analysis indicated that the original model showed an inadequate fit to the present data. Internal consistency coefficients of the subscales ranged between 0.72 and 0.88, and the test-retest reliability of subscales over a 3-week interval ranged from 0.51 to 0.70. As in the original version, we found that actively approaching and seeking social support were more adaptive strategies, whereas withdrawal and ignoring were less adaptive strategies. Results were mixed for the seeking distraction subscale. Additionally, withdrawal significantly predicted future depressive and anxiety symptoms. Overall, our results provide support for the Turkish version of the BERQ as a reliable and valid measure of behavioral emotion regulation strategies.

Assessment of the reliability and validity of the effect evaluation index system for health education of coronary heart disease

Objective To assess the reliability and validity of the effect evaluation index system for health education of coronary heart disease.Methods A total of 306 patients with coronary heart disease in four third-grade and A-level hospitals extacted by convenient sampling method were surveyed.Project analysis,exploratory factor analysis,correlation analysis and so on were applied to analyze and select items.Then the Cronbach's alpha coefficient,test-retest reliability,and content validity of the scale were tested.Then the original system was modified and the eventual system was formed.Results The scale was consisted of 8 first-dimensions and 35 indexes.The Cronbach's α of the total system was 0.832,and the α of subscales were from 0.629 to 0.882.The test-retest reliability of the total system was 0.966,and the testretest reliability of subscales were from 0.848 to 0.942.The S-CVI/Ave of system was 0.99,and the S-CVI/UA of indexes was 0.91.The Pearson correlation coefficient of the indexes with their dimensions were from 0.574 to 0.916,which were higher than the coefficient of the indexes with other dimensions.Factor analysis supported the eight-factor structure of the system,which could explain 65.61％ of the total variance and the factor loading of each index were from 0.430 to 0.938.Conclusions The system is reliable and valid,and can provide a unified reference standard for effect evaluation of health education of coronary heart disease. Key words: Coronary heart disease; Health education; Effect evaluation; Scale; Reliability; Validity

Portuguese Children's Sleep Habits Questionnaire - validation and cross-cultural comparison

ObjectiveTo validate the Portuguese version of the Children's Sleep Habits Questionnaire (CSHQ-PT) and compare it to the versions from other countries. MethodsThe questionnaire was previously adapted to the Portuguese language according to international guidelines. 500 questionnaires were delivered to the parents of a Portuguese community sample of children aged 2 to 10 years old. 370 (74%) valid questionnaires were obtained, 55 children met exclusion criteria and 315 entered in the validation study. ResultsThe CSHQ-PT internal consistency (Cronbach's α) was 0.78 for the total scale and ranged from 0.44 to 0.74 for subscales. The test-retest reliability for subscales (Pearson's cor-relations, n=58) ranged from 0.59 to 0.85. Our data did not adjust to the original 8 domains structure in Confirmatory Factor Analysis but the Exploratory Factor Analysis extracted 5 factors that have correspondence to CSHQ subscales. ConclusionThe CSHQ-PT evidenced psychometric properties that are comparable to the versions from other countries and adequate for the screening of sleep disturbances in children from 2 to 10 years old.

Portuguese Children's Sleep Habits Questionnaire - validation and cross-cultural comparison

Objectiveto validate the Portuguese version of the Children's Sleep Habits Questionnaire (CSHQ-PT) and compare it to the versions from other countries. Methodsthe questionnaire was previously adapted to the Portuguese language according to international guidelines. 500 questionnaires were delivered to the parents of a Portuguese community sample of children aged 2 to 10 years old. 370 (74%) valid questionnaires were obtained, 55 children met exclusion criteria and 315 entered in the validation study. Resultsthe CSHQ-PT internal consistency (Cronbach's α) was 0.78 for the total scale and ranged from 0.44 to 0.74 for subscales. The test-retest reliability for subscales (Pearson's correlations, n=58) ranged from 0.59 to 0.85. Our data did not adjust to the original 8 domains structure in Confirmatory Factor Analysis but the Exploratory Factor Analysis extracted 5 factors that have correspondence to CSHQ subscales. Conclusionthe CSHQ-PT evidenced psychometric properties that are comparable to the versions from other countries and adequate for the screening of sleep disturbances in children from 2 to 10 years old.

Development of a nursing home vision-targeted health-related quality of life questionnaire for older adults

Purpose: To develop a questionnaire assessing vision-targeted health-related quality of life in older adults residing in nursing homes. Methods: Using content previously identified through structured interviews with nursing home residents, the 57-item Nursing Home Vision-Targeted Health-Related Quality of Life questionnaire (NHVQoL) was drafted with nine subscales—general vision, reading, ocular symptoms, mobility, psychological distress, activities of daily living, activities/hobbies, adaptation/coping and social interaction. Construct validity and internal consistency and test-retest reliability of subscales were evaluated in a sample of adults ≥60 years old residing in nursing homes in Birmingham, Alabama, who had Mini Mental State Exam (MMSE) scores of ≥13. Results: Participants (n=189) had a mean age of 82 years (SD=7.7), were 84% women and 16% men, 24% African-American and 76% Caucasian and had resided in a nursing home for two years on average. All NHVQoL subscales were correlated with subscales from other vision-targeted and generic health-related quality of life instruments (ADVS, 0.43 to 0.85; VF-14, 0.46 to 0.84; SF-36, 0.19 to 0.43). Lower scores were associated with increased depressive symptomatology by the Geriatric Depression Scale (−0.23 to −0.59), increased mobility problems (−0.17 to −0.54), worse distance and near acuity (−0.21 to −0.51) and worse contrast sensitivity (0.20 to 0.50). All subscales had Cronbach α>0.95. Test-retest reliability (two-week period) for subscales ranged from 0.57 to 0.84. Subscale scores did not differ as a function of MMSE scores. Conclusions: The NHVQoL has subscales with good internal consistency reliability and validity. Test-retest reliability is comparable to other questionnaires designed for the nursing home population. This questionnaire may ultimately be useful in understanding the personal burden of visual impairment and eye disease on quality of life and mental health in older nursing home residents and for evaluating the impact of psychosocial and eye care interventions on health-related quality of life in this population.

The Refractive Status and Vision Profile (RSVP): Translation Into Persian, Reliability and Validity

Purpose: To translate and test the reliability and validity of a Persian translation of the Refractive Status and Vision Profile (RSVP), a vision-related quality of life questionnaire, in Iran. Methods: Forward & backward translation, committee review and pilot testing were performed to develop a final Iranian version of the RSVP. Seventy-three consecutive patients with refractive error before or after refractive surgery at the LASIK ward of Farabi Eye Hospital completed the questionnaire. A convenience sample of 14 patients completed the questionnaire twice within one week. Reliability was measured by internal consistency (Cronbach's α) and the intraclass correlation coefficient for test-retest reliability. Validity was evaluated by correlation between the different RSVP subscales, known groups comparison analysis, and correlation between the subscales versus global items and traditional clinical measures. Results: Internal consistency was high (Cronbach's α : 0.71–0.92; except for the subscale expectations, α : 0.6). Test-retest reliability of subscales and the overall RSVP scale, as estimated by the intraclass correlation coefficient, was high except for optical problems and glare. Comparisons between pre- and post-operative groups of patients showed significantly higher (worse) scores for concern, physical/social functioning, and the overall score in the pre-operative group. Almost all subscales showed desirable inter-scale correlations. Conclusion: The Iranian version of the RSVP is a reliable and valid measure of vision-related quality of life in patients with refractive error.