Relationships among community characteristics and walking and bicycling for transportation or recreation

PURPOSE: Compare walking and bicycling for transportation and recreation with the percentage of the community devoted to parklands. METHODS: Behavioral Risk Factor Surveillance System (N = 206,992), Nationwide Personal Transportation Survey (N = 409,025), and Trust for Public Land (N = 55) data were used to estimate recreational walking and bicycling, utilitarian walking and bicycling, and parkland as a percentage of city acreage. Data were linked at the metropolitan statistical area or city level (N = 34). Pearson correlation coefficients were used to assess the associations among recreational and utilitarian walking and bicycling and parkland acreage. RESULTS: Utilitarian walking and bicycling and parkland acreage were significantly correlated (r = .62, p < .0001). No significant relationships were observed for leisure time walking or bicycling. DISCUSSION: Communities with more parks had significantly higher levels of walking and bicycling for transportation. Urban design features associated with leisure time physical activity might differ from those associated with transportation-related physical activity. Further studies are needed to articulate the relationships among community attributes and purposes of physical activity.     

Walking and bicycling: an evaluation of environmental audit instruments

PURPOSE: This paper reviews existing environmental audit instruments used to capture the walkability and bikability of environments. The review inventories and evaluates individual measures of environmental factors used in these instruments. It synthesizes the current state of knowledge in quantifying the built environment. The paper provides health promotion professionals an understanding of the essential aspects of environments influencing walking and bicycling for both recreational and transportation purposes. It serves as a basis to develop valid and efficient tools to create activity-friendly communities. DATA SOURCES: Keyword searches identified journal articles from the computer-based Academic Citation Databases, including the National Transportation Library, the Web of Science Citation Database, and MEDLINE. Governmental publications and conference proceedings were also searched. STUDY INCLUSION AND EXCLUSION CRITERIA: All instruments to audit physical environments have been included in this review, considering both recreation- and transportation related walking and bicycling. Excluded are general methods devised to estimate walking and cycling trips, those used in empirical studies on land use and transportation, and research on walking inside buildings. DATA EXTRACTION METHODS: Data have been extracted from each instrument using a template of key items developed for this review. The data were examined for quality assurance among three experienced researchers. DATA SYNTHESIS: A behavioral model of the built environment guides the synthesis according to three components: the origin and destination of the walk or bike trip, the characteristics of the road traveled, and the characteristics of the areas surrounding the trip's origin and destination. These components, combined with the characteristics of the instruments themselves, lead to a classification of the instruments into the four categories of inventory, route quality assessment, area quality assessment, and approaches to estimating latent demand for walking and bicycling. Furthermore, individual variables used in each instrument to measure the environment are grouped into four classes: spatiophysical, spatiobehavioral, spatiopsychosocial, and policy-based. MAJOR CONCLUSIONS: Individually, existing instruments rely on selective classes of variables and therefore assess only parts of built environments that affect walking and bicycling. Most of the instruments and individual measures have not been rigorously tested because of a lack of available data on walking and bicycling and because of limited research budgets. Future instrument development will depend on the acquisition of empirical data on walking and bicycling, on inclusion of all three components of the behavioral model, and on consideration of all classes of variables identified.     

Analysis of validity and reliability of the adapted portuguese version of Antonovsky's Sense of Coherence Questionnaire among nursing professionals

This methodological study aimed to evaluate the construct validity and reliability of the Brazilian-Portuguese version of Antonovsky's Sense of Coherence Questionnaire (ASCQ) among nursing professionals. The study included 211 professionals who worked in the surgical wards of eleven hospitals in a city in the interior of the State of Paraná-Brazil. The majority of participants were female (86.7%), with a mean length of service of 9.3 (SD=8.0) years. Construct validity was evaluated using Pearson correlation tests between the measures of sense of coherence and correlated constructs, obtaining strong negative correlations between sense of coherence and anxiety (r=-0.53) and sense of coherence and depression (r=-0.61). Internal reliability, assessed by Cronbach's alpha, obtained an acceptable value of 0.87. The Brazilian-Portuguese version of ASCQ maintained the psychometric properties of the original scale when used with nursing professionals.     

A rapid dietary assessment tool to determine intake of folate was developed and validated

BACKGROUND AND OBJECTIVE: Estimates of dietary folate intake are currently of considerable interest, but no rapid tools are available to assess dietary intake of folate that are well suited to everyday health promotion activities. We developed and tested the reliability and validity of two prototypes of a rapid dietary assessment tool (a folate intake tool, FIT) to determine dietary intake of folate. STUDY DESIGN AND SETTING: Five hundred and sixty eight men and women aged 33-83 years from Perth, Western Australia, completed one of the two prototypes of the tool and gave a fasting blood sample for measurement of serum folate. A subset (n=277) of participants completed the same tool on a second occasion 3-6 weeks later. RESULTS: The Pearson correlations (r) between folate score from the tool and serum folate were moderately high for both prototypes (FIT-A r=0.54; FIT-B r=0.49). The folate scores for the two prototypes were similar on repeat testing and correlated strongly (FIT-A r=0.75; FIT-B r=0.68). CONCLUSIONS: The rapid dietary assessment tool described here, FIT, provides a valid and reliable measurement of dietary intake of folate for both men and women.     

Development of a client-generated health outcome measure for community nursing

OBJECTIVE: To develop a client-generated outcome measure for use in community nursing. METHOD: Participants for the study were identified from the case load of community health nurses, from a nursing home service and from residents of a retirement village. All participants had a diagnosis of venous leg ulcer (VLU) and/or type 2 diabetes. Preliminary development of the measure involved focus groups of community clients and health professionals, and pilot testing of an existing quality of life (QoL) measure, the Patient-Generated Index. The resulting Client-Generated Index was tested for reliability and validity. RESULTS: The Pearson's correlation coefficient between administration of the CGI at T1 and T2 was 0.526 (n = 51; p = 0.0001). The CGI correlated significantly with four of eight dimensions of the SF-36, and with pain as a clinical marker for VLU r = 0.54 (p = 0.001). Overall, participants with VLU reported a lower QoL (mean CGI score 2.8) compared to those with diabetes (mean CGI score 4.1). CONCLUSIONS: The CGI was developed to measure outcomes in community health settings. Some measures of its reliability and validity are demonstrated and further research is needed to validate the instrument using other client groups. IMPLICATIONS: If routine assessment and evaluation is to contribute to measures of outcome, the instruments need to be concise and acceptable to health care providers. The CGI has all these properties.     

Reliability and validity of 2 single-item measures of psychosocial stress

BACKGROUND: Practical limitations in epidemiologic research may necessitate use of only a few questions for assessing the complex phenomenon called "stress." The objective of this study was to evaluate the measurement characteristics of 2 single-item measures on the amount of stress and the ability to handle stress. METHODS: We selected 218 adults age 50 to 76 years living in western Washington state from a large prospective cohort study of lifestyle factors and cancer risk to evaluate the 3-month test-retest reliability and intermethod reliability of the stress questions. To assess the latter, we compared 2 single-item measures on stress with 3 more fully validated multi-item instruments on perceived stress, daily hassles, and life events, which assessed the same underlying constructs as the single-item measures. RESULTS: The test-retest reliabilities for the single-item stress measures were good (kappa and intraclass correlations between 0.66 and 0.74). The intermethod reliabilities comparing the 2 single-item stress measures with 3 multi-item instruments were moderate (r = 0.31-0.46) and comparable to correlations observed among the 3 multi-item instruments (r = 0.25-0.47). CONCLUSIONS: The 2 single-item stress measures are reliable at measuring stress with validity similar to longer questionnaires. Single-item measures offer a practical instrument for assessing stress in large prospective epidemiologic studies that lack space for longer instruments.     

The Functional Pain Scale: reliability,validity, and responsiveness in an elderly population

OBJECTIVES: Because of difficulty experienced in assessing pain in frail older patients and the lack of pain assessment tools with standardization in the elderly, the Functional Pain Scale (FPS), an instrument incorporating both subjective and objective components to assess pain, was developed and evaluated. DESIGN, SETTING, PARTICIPANTS, AND MEASURES: One hundred subjects more than 65 years old participated in the validity, reliability, and responsiveness (the clinical sensitivity of the instrument to change) testing of the Functional Pain Scale. Subjects were recruited from a geriatrics inpatient setting, a geriatrics outpatient setting, and a local hospice (residing in their homes). Ninety-four of the subjects completed all phases of testing. Reliability was tested using a test-retest format and a correlation matrix. Criterion-related validity was established as compared with the Visual Analog Scale (VAS), the Present Pain Intensity (PPI), the McGill Short Form Questionnaire (MPQ-SF), and the Numeric Pain Scale (NPS) instruments. Responsiveness for the FPS, the VAS, the PPI, the MPQ-SF, and the NPS instruments was determined using five previously described techniques: effect size, standardized response means, relative efficiency, direct comparison of t test scores, and direct comparison of P values. A cumulative index was developed to rank each scale. Cumulative responsiveness index scores were based on individual scale performance for each separate responsiveness test. The lowest score in the cumulative responsiveness index indicated the most responsive scale. RESULTS: Interrater reliability for instruments tested exceeded 0.95 for all instruments tested. Validity testing showed high correlations as well (r = 0.62, r = 0.85, r = 0.80, r = 0.90 for the VAS, the PPI, the MPQ-SF, and the NPS respectively). Responsiveness evaluated overall by the responsiveness index was best for the Functional Pain Scale (7) followed by the Visual Analog Scale (12), the Present Pain Intensity (13), the McGill Pain Questionnaire-Short Form (19), and the Numerical Pain Questionnaire (24). CONCLUSIONS: The Functional Pain Scale was determined to be reliable, valid, and responsive. The responsiveness of the Functional Pain Scale was superior to the other instruments tested. The Functional Pain Scale is an acceptable instrument for assessing pain in older adults and may reflect changes in pain better than other instruments tested. Further testing in other populations is warranted.     

Assessing suitability for a problem-based learning curriculum: evaluating a new student selection instrument

CONTEXT: A new student selection instrument has been designed to assess candidate suitability for a problem-based learning, small group curriculum. OBJECTIVE: To evaluate the performance of the new teamwork selection instrument in terms of its discriminatory power, fairness, validity, reliability and acceptability among candidates. SAMPLE: A sample of 69 volunteer candidates attending for interview formed 13 teams of 5 or 6 candidates each. Each candidate was assessed independently by 2 assessors. Candidate performance in the exercise was used for instrument evaluation purposes only. RESULTS: The instrument demonstrated good item discrimination (item-total correlations r = between 0.75 and 0.83, P <0.01); the potential for good agreement between raters (63% agreement, weighted kappa = 0.38, P <0.01); strong internal consistency reliability (Cronbach's alpha = 0.93), and good acceptability among candidates. No sources of assessment bias were identified on the basis of candidates' age (univariate anova F = 0.43, P >0.05), gender (unrelated samples t-test F = 1.2, P >0.05) or socioeconomic background (univariate anova F = 0.85, P >0.05). There was no statistically significant relationship between the candidates' performance in the new exercise and their performance in the standardised formal interview (r = - 0.37, P >0.05); the instrument had limited predictive validity, and some of the measured attributes require conceptual clarification. Discussion Statistical and conceptual analysis highlights the scope for development in the teamwork exercise. The exercise appears to be well suited to assessing candidate suitability for a problem-based learning curriculum.     

Reliability and validity of the Leisure Satisfaction Scale (LSS--short form) and the Adolescent Leisure Interest Profile (ALIP)

This study aimed to evaluate the reliability and validity of the Leisure Satisfaction Scale (LSS – short form) and the Adolescent Leisure Interest Profile (ALIP). The LSS and the ALIP are instruments that occupational therapists can use to evaluate the leisure activities that clients enjoy. Evaluation of leisure interest and participation will assist in creating goals for therapy to maximize a client's ability to participate in leisure activities. This study examined the test–retest reliability and concurrent validity of the LSS and the ALIP using a sample of 37 adolescents between the ages of 13 and 17 with no known impairments. The assessments were administered individually or in small groups 7 to 17 days apart. Cronbach's alpha was used to determine the internal consistency. Pearson product moment correlations were calculated to examine the test–retest reliability of the 60 subscales and the six question totals of the ALIP, as well as for the 6 subscales and total score of the LSS. Concurrent validity was evaluated between the ‘How often?’ question of the ALIP and the LSS (short form). Based on the study results, the ALIP and the LSS seem to have good test–retest reliability levels when used with adolescents with no known physical or mental impairments. The concurrent validity between the two instruments was not supported, with many of the scores indicating only weak or no association to each of the subscales, suggesting that the assessments differ in some fundamental way. However, the evidence of some relationships between subscales may indicate some areas where the ALIP and the LSS are similar. Copyright © 2002 Whurr Publishers Ltd.     

How valid and reliable are patient satisfaction data? An analysis of 195 studies.

OBJECTIVE: To assess the properties of validity and reliability of instruments used to assess satisfaction in a broad sample of health service user satisfaction studies, and to assess the level of awareness of these issues among study authors. DESIGN: Examination and analysis of 195 papers published in 1994 in 139 journals. The following databases were searched: British Nursing Index, CINAHL, EMBASE, MedLine, Popline, and PsycLIT. MAIN MEASURES: Number and types of strategies used for content, criterion, and construct validity, and for stability and internal consistency. Associations between validity/reliability and other study characteristics. RESULTS: Eighty-nine (46%) of the 195 studies reported some validity or reliability data; 76 reported some element of content validity; 14 reported criterion validity, with patient's intent to return the most commonly used criterion; four reported construct validity. Thirty-four studies reported internal consistency reliability, 31 of which used Cronbach's coefficient alpha; eight studies reported test-retest reliability. Only 11 studies (6% of the 181 quantitative studies) reported content validity and criterion or construct validity and reliability. 'New' instruments designed specifically for the reported study demonstrated significantly less evidence for reliability/validity than did 'old' instruments. CONCLUSION: With few exceptions, the study instruments in this sample demonstrated little evidence of reliability or validity. Moreover, study authors exhibited a poor understanding of the importance of these properties in the assessment of satisfaction. Researchers must be aware that this is poor research practice, and that lack of a reliable and valid assessment instrument casts doubt on the credibility of satisfaction findings.     

Reliability and validity of the PORPUS, a combined psychometric and utility-based quality-of-life instrument for prostate cancer

BACKGROUND: Although utility-based quality-of-life instruments are often used in economic evaluations and psychometric instruments in treatment evaluations, these are complementary approaches to assessing outcomes. In this study we developed and tested these two forms of quality-of-life instruments, both based on a single, validated, health classification system. OBJECTIVES: To assess the measurement properties (reliability and validity) of two newly developed psychometric and utility-based instruments for assessing outcomes associated with prostate cancer. METHODS: 141 men with cancer of the prostate (CaP), treated with radical prostatectomy, radiation therapy, hormonal therapy, and/or chemotherapy were assessed with both instruments and other standard psychometric and utility-based instruments. RESULTS: Analyses indicate the test instruments are reliable and valid. Full-scale correlations between the instruments and standard instruments indicate validity, as do correlations of key subscales, and an evaluation of linear associations with the UCLA-Prostate Cancer Symptom Scales. CONCLUSION: Evidence from this study supports the reliability and construct validity of the tested instruments. Prostate cancer outcomes can now be assessed by a combination of psychometric and utility-based methods, allowing a ready comparison of derived outcomes.     

Development and validation of a Medicaid Postpartum Tubal Sterilization Knowledge Questionnaire

BACKGROUND: We sought to describe the development and validation of the Postpartum Tubal Sterilization Knowledge Questionnaire (PTSK-Q), a survey designed to assess Medicaid recipients' understanding of the postpartum tubal sterilization process. STUDY DESIGN: Initially, the investigators generated a list of 17 potential items to include in the PTSK-Q. Eleven content experts reviewed two drafts of the PTSK-Q and provided qualitative and quantitative assessments. Eight women completed a field test to determine suitability and clarity of individual PTSK-Q items, while 26 women completed a pilot test to determine internal consistency and test-retest reliability of the PTSK-Q. The Flesch Reading Ease (FRE) was used to assess reading grade level of the PTSK-Q. RESULTS: Seven items were rated as "essential" (content validity ratio=p<.05) by content experts and composed the final PTSK-Q. Internal consistency, using Kuder Richardson-20, was 0.68. Test-retest reliability, using intraclass correlation coefficient, was 0.93. The FRE score of the PTSK-Q was 85.14 (sixth reading grade level). CONCLUSIONS: The PTSK-Q is a valid, readable and reliable knowledge assessment instrument for assessing understanding of postpartum sterilization and Medicaid sterilization consent requirements.     

Validity and reliability of a Malay version of the Lawton instrumental activities of daily living scale among the Malay speaking elderly in Malaysia

Background/aim

The Lawton Instrumental Activities of Daily Living Scale is a tool often used to assess independence among elderly at home. Its suitability to be used with the elderly population in Malaysia has not been validated. This current study aimed to assess the validity and reliability of the Lawton Instrumental Activities of Daily Living Scale – Malay Version to Malay speaking elderly in Malaysia.

Methods

This study was divided into three phases: (1) translation and linguistic validity involving both forward and backward translations; (2) establishment of face validity and content validity; and (3) establishment of reliability involving inter‐rater, test‐retest and internal consistency analyses. Data used for these analyses were obtained by interviewing 65 elderly respondents.

Results

Percentages of Content Validity Index for 4 criteria were from 88.89 to 100.0. The Cronbach α coefficient for internal consistency was 0.838. Intra‐class Correlation Coefficient of inter‐rater reliability and test‐retest reliability was 0.957 and 0.950 respectively.

Conclusions

The result shows that the Lawton Instrumental Activities of Daily Living Scale – Malay Version has excellent reliability and validity for use with the Malay speaking elderly people in Malaysia. This scale could be used by professionals to assess functional ability of elderly who live independently in community.     

Reliability and validity of Web‐SPAN,a web‐based method for assessing weight status,diet and physical activity in youth

Background: Web‐based surveys are becoming increasing popular. The present study aimed to assess the reliability and validity of the Web‐Survey of Physical Activity and Nutrition (Web‐SPAN) for self‐report of height and weight, diet and physical activity by youth. Methods: School children aged 11–15 years (grades 7–9; n = 459) participated in the school‐based research (boys, n = 225; girls, n = 233; mean age, 12.8 years). Students completed Web‐SPAN (self‐administered) twice and participated in on‐site school assessments [height, weight, 3‐day food/pedometer record, Physical Activity Questionnaire for Older Children (PAQ‐C), shuttle run]. Intraclass (ICC) and Pearson’s correlation coefficients and paired samples t‐tests were used to assess the test–retest reliability of Web‐SPAN and to compare Web‐SPAN with the on‐site assessments. Results: Test–retest reliability for height (ICC = 0.90), weight (ICC = 0.98) and the PAQ‐C (ICC = 0.79) were highly correlated, whereas correlations for nutrients were not as strong (ICC = 0.37–0.64). There were no differences between Web‐SPAN times 1 and 2 for height and weight, although there were differences for the PAQ‐C and most nutrients. Web‐SPAN was strongly correlated with the on‐site assessments, including height (ICC = 0.88), weight (ICC = 0.93) and the PAQ‐C (ICC = 0.70). Mean differences for height and the PAQ‐C were not significant, whereas mean differences for weight were significant resulting in an underestimation of being overweight/obesity prevalence (84% agreement). Correlations for nutrients were in the range 0.24–0.40; mean differences were small but generally significantly different. Correlations were weak between the web‐based PAQ‐C and 3‐day pedometer record (r = 0.28) and 20‐m shuttle run (r = 0.28). Conclusions: Web‐SPAN is a time‐ and cost‐effective method that can be used to assess the diet and physical activity status of youth in large cross‐sectional studies and to assess group trends (weight status).     

Assessing the practising physician using patient surveys: a systematic review of instruments and feedback methods

BACKGROUND: Individual physician performance assessment is a vital part of the medical regulation debate. In this context, the patient perspective is seen as a potentially valid component. Yet, the theoretical and empirical evidence base for such patient assessments is unclear. OBJECTIVES: To identify and evaluate instruments designed to assess patients' experiences with an individual practising physician, and to provide performance feedback at the individual level. METHODS: Nine electronic databases were searched with no language restrictions: PubMed (1985-), Embase (1985-), PsycInfo (1985-), SIGLE (1985-), HMIC (1985-), ASSIA (1985-), CINAHL (1985-), Cochrane (1985-) and Dare (1985-). STUDY SELECTION: Inclusion: (i) completed by patients; (ii) assess practising doctors; (iii) have capacity to assess individual doctors for performance feedback; and (iv) used for individual performance feedback. Exclusion: (i) completed by colleagues, observers or third parties; (ii) assess medical students, nurses or non-physicians; (iii) assess purely at an organizational level; and (iv) not been used for individual feedback. All electronic outputs were independently assessed by three reviewers. Data were extracted independently by two of three reviewers using a defined template. RESULTS: Six instruments met the inclusion criteria. They all combine evaluation at both organizational and individual level and implementation methods lack standardization. There is limited data on their construct validity or correlations with other attributes. The purpose and method of individual feedback are not well specified, and the evidence to date about the effectiveness of feedback to obtain improvement indicates professional resistance. CONCLUSIONS: For formative goals, more clarity is needed about the aim of providing patient assessments feedback to individual doctors: 'who' should do it and 'how' to do so to best effect. We need to know whether feedback improves doctor performance and how these evaluations correlate with other physician attributes. For summative purposes more research is required on validity and reliability.     

Development and Evaluation of a Brief Screener to Estimate Fast-Food and Beverage Consumption among Adolescents

Sweetened beverage and fast-food intake have been identified as important targets for obesity prevention. However, there are few brief dietary assessment tools available to evaluate these behaviors among adolescents. The objective of this research was to examine reliability and validity of a 22-item dietary screener assessing adolescent consumption of specific energy-containing and non-energy-containing beverages (nine items) and fast food (13 items). The screener was administered to adolescents (ages 11 to 18 years) recruited from the Minneapolis/St Paul, MN, metro region. One sample of adolescents completed test-retest reliability of the screener (n=33, primarily white adolescents). Another adolescent sample completed the screener along with three 24-hour dietary recalls to assess criterion validity (n=59 white adolescents). Test-retest assessments were completed approximately 7 to 14 days apart, and agreement between the two administrations of the screener was substantial, with most items yielding Spearman correlations and κ statistics that were >0.60. When compared to the gold standard dietary recall data, findings indicate that the validity of the screener items assessing adolescents' intake of regular soda, sports drinks, milk, and water was fair. However, the differential assessment periods captured by the two methods (ie, 1 month for the screener vs 3 days for the recalls) posed challenges in analysis and made it impossible to assess the validity of some screener items. Overall while these screener items largely represent reliable measures with fair validity, our findings highlight the challenges inherent in the validation of brief dietary assessment tools.     

Assessment of quality of life in later life: Development and validation of the QuiLL

The aim was to develop a quality of life (QOL) instrument, informed by older people, carers and professionals in older peoples services, for use by community care staff as part of their assessment, care-planning and outcome monitoring procedures. The multi-phase development project involved: qualitative interviews to generate the item pool; pre-testing; preliminary field-testing; and final testing in a community survey and in health and social care settings. The process was informed by over 100 interviews with older people, carers, professionals, academics and policy-makers. Two products emerged following data-reduction: a research instrument (64 items), and a shorter assessment tool suitable for routine use in clinical, therapeutic or case-management practice (27 items, taking 7–15 min to complete). A community survey using the research instrument achieved a 71 response rate (n=249). Ninety six percent of people found the domain content of the assessment tool relevant, and 80 considered the items covered were important. Both instruments have good internal consistency (=0.85). Inter-rater reliability was good for research staff, but poor between them and operational staff. Little objective change took place during the 3-month follow-up study, but where it did the direction was consistent with subjective change. The instrument needs to be applied in different contexts to assess interventions of known impact. Together with daily living and health status measures it can form part of a comprehensive assessment for older people.     

Assessing health-related quality-of-life and health state preference in persons with obesity: a validation study

The objective of this study was to assess the reliability, validity and responsiveness of a new health-related quality-of-life (HRQOL) measure containing global and obesity-specific domains and an obesity-specific health state preference (HSP) assessment. A total of 417 obese and ‘normal’ weight individuals completed these assessments. Internal consistency and test-retest reliability were demonstrated, with Cronbach's ?, intraclass correlation coefficient and ? values well above the acceptable level for most scales. Construct validity hypotheses were confirmed by examining scale correlations. The normal weight individuals reported statistically significantly better functioning and well-being on the majority of the HRQOL scales and HSP than obese individuals. Guyatt's statistic of responsiveness was moderate to high for all the scales and items in the weight-loss and weight-gain groups; however, many of the scales and items in the weight-stable group also displayed responsiveness. The results of this study support the reliability and validity of these assessments. However, further testing is needed to evaluate the responsiveness of both assessments in a weight-stable group.     

简版自我感知老化量表在社区老年人中应用的信效度研究

目的 评价简版自我感知老化量表（the Brief Ageing Perceptions Questionnaire,B - APQ）在社区老年人中应用的信效度。方法 采用方便取样法,抽取辽宁省沈阳市494例社区老年人进行调查,应用SPSS20.0和AMOS17.0软件处理数据。结果 条目与总分Pearson相关系数为0.292～0.779（P＜0.05),条目水平的内容效度指数（I - CVI）为0.830～1.000,量表水平的内容效度指数（S - CVI/UA）为0.820,平均量表水平的内容效度指数（S - CVI/Ave）为0.970;探索性因子分析提取到5个公因子,累积方差贡献率为81.775%;验证性因子分析中,卡方自由度比值χ2/df = 1.458,渐进残差均方和平方根(RMSEA) = 0.043,适配度指数（GFI） = 0.930,调整后适配度指数（AGFI） = 0.902,非规整适配度指数（TLI） = 0.986,增值适配度指数（IFI） = 0.989,比较适配度指数（CFI） = 0.989,简约适配度指数（PGFI） = 0.663,各数值均达到标准;标准化回归系数为0.54～0.97。效标关联验证,B - APQ与精简版流调中心抑郁量表（CES - D - R）总分呈正相关(r = 0.656,P＜0.01)。量表总Cronbach’s α 系数为0.914,分半信度为0.738。结论 简版自我感知老化量表（B - APQ）信效度良好,可用于测量我国社区老年人自我感知老化程度。