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Age differences in personality structure revisited: Studies in validity, stability, and change.

Construct validity and longitudinal stability evidence for three cluster dimensions of personality identified as Anxiety, Extraversion, and Openness is examined in a sample of adult males. Correlations with Allport-Vernon-Lindsay Value scales, Cornell Medical Index scores, Eysenck E and N scales, and factors from the SVIB are presented in support of the interpretation of the three clusters. Nine-year longitudinal evidence of stability is presented for Anxiety and Extraversion scores. Previous evidence for change in the structure of Openness to Experience is reconsidered in the light of eleven-year longitudinal data. While the earlier structural differences were not longitudinally replicated, a pattern of external correlates provided evidence for validity of an Openness dimension. Finally, the structural approach to personality development is illustrated by examining the differing relations between field-dependence and tendermindedness in younger and older men.

Adult↗

Validity of the MMPI-2 Depression content scale with psychiatric inpatients.

The concurrent and construct validity of the MMPI-2 Depression content scale was examined for a group of 62 psychiatric inpatients. Correlation coefficients with other measures of depression, hopelessness, low self-esteem, and suicide ideation ranged from .58 to .66 and were statistically significant. Also, the Depression content scale successfully differentiated patients according to psychiatric diagnosis (depressed versus nondepressed) and assessed suicide risk (at risk versus not at risk). Thus, the concurrent and construct validities of the scale were supported.

Adolescent↗

Brief report: Adolescents' attitudes toward epilepsy: further validation of the Child Attitude Toward Illness Scale (CATIS).

OBJECTIVE: To examine adolescents' attitudes toward having epilepsy using the Child Attitude Toward Illness Scale (CATIS) and to provide further psychometric validation of the scale in this population. METHODS: Participants were 197 adolescents aged 11 to 17 years who completed the CATIS at two points and two external validation scales. Test-retest and internal consistency reliability and construct validity were computed. Analysis of variance was used to examine differences in attitudes according to gender, age, and epilepsy severity. RESULTS: Girls, older adolescents, and those with more severe epilepsy had more negative attitudes toward having epilepsy than boys, younger adolescents, and those with moderate or mild epilepsy, respectively. Psychometric analyses yielded excellent internal consistency reliability and good test-retest reliability. The CATIS was moderately correlated with self-esteem and mastery, supporting its construct validity. CONCLUSIONS: The CATIS is a useful and psychometrically sound tool to assess adolescents' attitudes toward having chronic illness.

Adolescent↗

Validation of the Adult OMNI Scale of perceived exertion for walking/running exercise.

PURPOSE: Concurrent and construct validity of the OMNI-Walk/Run Scale of Perceived Exertion was examined using young adult women and men (18-36 yr). METHODS: Concurrent validity was established by correlating OMNI-Walk/Run Scale ratings of perceived exertion (RPE-OMNI) with oxygen uptake (VO2), relative maximal oxygen uptake (%VO2(max)), ventilation (VE), respiratory rate (RR), respiratory exchange ratio (RER), and heart rate (HR) to a graded exercise test on a treadmill. Construct validity was established by correlating RPE-OMNI with RPE from the Borg (6-20) Scale (RPE-BORG). Measurements were made every min throughout the test. RESULTS: The range of exercise responses across the incremental walking/running test for the female and male groups were: VO2 = 0.99-3.9 L x min(-1), HR = 98-190 beats x min(-1) and RPE-OMNI = 1.3-9.4. Correlation/regression analyses indicated that RPE-OMNI distributed as a positive linear function for all criterion measures; r = 0.67 to 0.88 (P < 0.05). RPE-OMNI was positively and linearly related to the RPE-BORG; r = 0.96 (P < 0.01) for both the female and male groups. CONCLUSIONS: Concurrent and construct evidence supports use of the OMNI-Walk/Run Scale by adult women and men to estimate RPE during graded exercise test on a treadmill.

Adolescent↗

Validation of the mobility subscale of the Braden Scale for predicting pressure sore risk.

BACKGROUND: The Braden Scale for Predicting Pressure Sore Risk has been tested extensively for reliability and validity, but the validity of each subscale has not been evaluated. Because subscale scores are intended to guide patient care decisions, validity is an important issue. OBJECTIVE: : To establish the convergent construct validity of the mobility subscale of the Braden Scale. METHODS: The study evaluated 16 members at a veterans' home (4 members representing each score on the mobility subscale). Movement, as recorded by a Motionlogger Actigraph, a wristwatch-sized accelerometer and microprocessor that measures physical movement (activity), was measured continuously. Each person wore an Actigraph on the nondominant ankle for 72 hours. RESULTS: The mean activity for each of the four subscale score groups was plotted, producing a histogram in which higher scores were associated with greater activity (F[3, 15] = 31.69;p <.001, one-way analysis of variance), as expected. Pair wise multiple comparisons between groups showed that only the subgroup with a score of 4 was significantly different in mean activity (p <.001) from the other three score groups. CONCLUSIONS: Convergent construct validity for the Braden mobility subscale was supported. A larger sample and establishment of a threshold to eliminate minor, ineffective movements from Motionlogger Actigraph measures may distinguish between significant and nonsignificant movement.

Aged↗

The relationship of patient-administered outcome assessments to quality of life and physician ratings: validity of the BASIS-32.

The reliability and validity of a patient-administered version of the Behavior and Symptom Identification Scale (BASIS-32) was compared to the original interviewer-administered version. The construct validity of BASIS-32 subscales was assessed by examining their relationship with functional and satisfaction quality of life and physician ratings of functional and clinical status. A total of 361 acute psychiatric inpatients were given a self-administered BASIS-32, nurse-administered Lehman's Quality of Life Interview (QOLI), and Psychiatrist Assessment Form at admission and discharge. The original factor structure, internal consistency reliability, discriminant validity, and sensitivity to change were replicated. The patient-administered BASIS-32 is equally as reliable and valid as the interview. Construct validity analyses revealed that functional and satisfaction QOLI indices were moderately related to the BASIS-32 in the hypothesized directions. All satisfaction scales were associated with significantly less severity. Physician ratings were only mildly related to the subscales. The BASIS-32 used in outcome assessments with inpatients provides important and unique perspectives on functional and clinical status that are not tapped by clinician-rated assessments.

Inpatients↗

Comparing three measures of depressive symptoms among American Indian adolescents.

This study examined the measurement of depressive symptoms among American Indian adolescents as assessed by the Center for Epidemiologic Studies Depression Scale (CES-D), Youth Self Report (YSR), and the Tri-Ethnic Center's for Prevention Research Depression Scale (TEDS). This analysis demonstrated that the TEDS had good internal consistency, demonstrated construct validity, and shared a commonality with the other two measures, but had limited predictive validity. The YSR had strong predictive validity but, like the CES-D, showed weakness in construct validity. Unexpectedly, the CES-D and YSR revealed enculturated youth were at risk of depressive symptoms. These findings do not generate unequivocal support for any one measure, but suggest that their strengths and potential shortcomings should be taken into account when assessing depressive symptoms among American Indian youth.

Acculturation↗

Measurement of parenting self-efficacy and outcome expectancy related to discussions about sex.

The purpose of this study was to evaluate the psychometric properties of two scales--one to measure the self-efficacy of parents to discuss sexual health issues with their adolescents and the other to measure parents' outcome expectancy associated with such discussions. Understanding how parents feel about their confidence in talking with their children about important sexual health issues and the outcomes they expect as a result of such discussions can be useful in guiding both the development and refinement of educational programs to promote parent-child discussions. The responses of 491 mothers who participated in an HIV prevention intervention with their adolescents were used for the present analysis. Mothers ranged in age from 25 to 68 years with a mean of 37.9 years (SD = 6.9). Of mother participants, 33% were married, 96.7% were African American, and 89.2% had completed high school. Their adolescents ranged in age from 11 to 14 years, and 61.5% were male. Assessment of reliability for both scales showed that internal consistency reliability was acceptable for the total scales as well as three of the five subscales. With the exception of one item on the outcome expectancy scale, the inter-item correlations, the mean inter-item correlations, and the item-to-total correlations meet the standard criteria for scale development for both scales. Factor analysis was used to identify the underlying structure of the scales, and hypothesis testing was used to assess construct validity. The results of these analyses provide support for the construct validity of the scales.

Adolescent↗

A reliability and validity analysis of an alcohol-related harm scale for surveys.

OBJECTIVE: To test reliability and construct validity of an alcohol-related harm scale widely used in North American surveys. METHOD: Data base: three representative general population household telephone surveys in Ontario, Canada (1994: N = 2,022, response rate 63%; 1995: N = 994, response rate 63%; 1996: N = 2,721, response rate 64%). STATISTICAL ANALYSIS: psychometric analysis of internal consistency (Cronbach); Mokken scaling to test homogeneity of underlying construct; tests for construct validity by measuring associations with similar scales. RESULTS: The scale showed high internal consistency and homogeneity of the underlying construct. The correlations with the CAGE and ICD-10 criteria for dependence ranged between 0.5 and 0.7. CONCLUSIONS: The harm scale is measuring a unidimensional construct, but one which is not distinct from that measured by the CAGE or dependence criteria.

Adult↗

Further validation of the Dutch version of the Enright Forgiveness Inventory.

This study examined the reliability, construct validity, and factor pattern of the Dutch version of the Enright Forgiveness Inventory (EFI) in a sample of 731 respondents (heterosexually married adults, 359 males and 372 females) in Belgium. The Cronbach alpha for EFI total (.98) and all its subscales, Positive Affect (PA) (.95), Negative Affect (NA) (.92), Positive Behaviour (PB) (.94), Negative Behaviour (NB) (.94), Positive Cognition (PC) (.95), Negative Cognition (NC) (.93) were high. The construct validity of the scale was measured by a 1-item scale. The 1-item scale proved to be positive, strong and significantly (p < .001) correlated with EFI (.73). Principal components analysis in an Initial Factor Method found a one-factor solution confirming the unidimensional structure of EFI.

Adaptation, Psychological↗

Validation of the adult OMNI scale of perceived exertion for cycle ergometer exercise.

PURPOSE: Concurrent and construct validity of the OMNI-Cycle Scale of Perceived Exertion were examined using young adult women and men (18-32 yr). METHODS: Concurrent validity was established by correlating OMNI-Cycle Scale ratings of perceived exertion (RPE) with oxygen consumption (.VO2) and heart rate (HR) responses to a load-incremented cycle ergometer protocol. Construct validity was established by correlating RPE derived from the OMNI-Cycle Scale with RPE from the Borg (6-20) Scale. RPE, .VO2, and HR were measured during each exercise stage. RESULTS: The range of exercise responses across the incremental test for the female and male groups was .VO2 = 0.92-2.74 L.min-1, HR = 107.2-167.2 beats.min-1, and OMNI Scale RPE-Overall, RPE-Legs, and RPE-Chest 1.0-9.1. Correlation/regression analyses indicated that RPE-Overall, RPE-Legs, and RPE-Chest distributed as a positive linear function of both .VO2 and HR (r = 0.81 to 0.95; P < 0.01). Undifferentiated and differentiated RPE-OMNI Scale distributed as a positive linear function of RPE-Borg Scale (r = 0.92 to 0.97; P < 0.01). ANOVA indicated that OMNI-Cycle RPE-Legs was higher (P < 0.01) than RPE-Chest at each exercise stage for both genders. CONCLUSION: Concurrent and construct evidence supports use of the OMNI Scale by adult women and men to estimate RPE during cycle exercise.

Adult↗

The validity of the MIMIC (Multiple Indicators/MultIple Causes) health index--some empirical evidence.

This study evaluates the potential of econometric models with latent (unobservable) variables for measuring health or health impairment due to a specific disease. A MIMIC disability index is estimated for a sample of 145 adults with chronic bronchitis, expressing their self-reported disability caused by the disease on a one-dimensional scale. The index is determined up to a linear transformation. Disability is thus measured on an interval scale. The data were collected by interviews. The questionnaire used for this purpose is based on a number of in-depth interviews with selected bronchitis patients conducted beforehand. The study therefore focuses directly on the patients' perceptions of their disease. The validity of the index is evaluated in three different ways. First, construct validity is assessed performing groupwise analysis and testing for differences in the index values by subgroup. To a large extent, the index is consistent with a priori expectations. Therefore, we conclude that it has high construct validity. Second, validity of the index is assessed by comparing its results to a direct rating scale produced by 21 physicians with various medical backgrounds. The MIMIC index turns out to be related in a systematic, but nonlinear way to this direct rating scale. This can be interpreted in two different ways. If one accepts the preferences of health providers as the ultimate yardstick when it comes to ranking health or chronic states the result suggests that the MIMIC index estimated in this way is not a valid measure of treatment success. By contrast, if patients' preferences are considered to be decisive, it suggests that physician-based ratings should be substituted for or at least complemented with patient-based indices (such as the MIMIC disability index estimated here) when evaluating medical services in terms of cost-effectiveness. Third we explore the extent to which the MIMIC index reflects utility associated with different states of disability, using a modified Torrance Standard Gamble approach. The above-mentioned physicians are used as experts in this procedure. The results indicate that the MIMIC index as estimated here is related in a systematic, but nonlinear way to the Standard Gamble risk index as well. The fact that this relationship is nonlinear indicates that the MIMIC index does not measure utility as derived from the experts' preferences directly. How this index would fare compared to a Standard Gamble risk index provided by patients (bronchitis subjects) is a question which remains open.(ABSTRACT TRUNCATED AT 400 WORDS)

Attitude to Health↗

The Glasgow Coma Scale: a critical appraisal of its clinimetric properties.

The Glasgow Coma Scale is a commonly used instrument in clinical practice. This article examines the published evidence to assess whether the scale possesses the requisite clinimetric properties. Articles describing and using the scale were located through a MEDLINE search. The clinimetric properties of the scale were appraised using the methodological principles of sensibility, reliability, validity, and responsiveness. The scale has a good sensibility and reliability (intraclass correlation coefficient, 0.8 to 1 for trained users). It has a well-established cross-sectional construct validity. Its predictive validity in traumatic coma, when combined with age and brainstem reflexes, is good in the generating sample (sensitivity, 79 to 97%; specificity, 84-97%) but has not been tested in an external validation sample. Its longitudinal construct validity has not been studied adequately. Thus, the scale is an established discriminative instrument but its validity as a predictive and an evaluative instrument has not yet been studied adequately.

Coma↗

Additional validation of the attitudes toward Seeking Professional Psychological Help Scale.

To provide information on the construct validity of the Attitudes Toward Seeking Professional Psychological Help scale, relationships between prior treatment experiences and scores on the scale were evaluated. Participants were 270 students recruited from undergraduate psychology courses at a medium-sized university in the midwestern USA. 79% were women: their ages ranged from 18 to 53 years (M= 19.0, SD=4.4). In addition to completing the scale, the subset of 76 participants who reported prior mental health care treatment also evaluated these experiences using a rating scale anchored by 0: very dissatisfied and 4: very satisfied. For the total sample, prior experience with the mental health care delivery system was associated with higher scores on the scale, denoting more positive attitudes. In the subgroup with prior treatment experience, evaluation ratings were also associated with treatment attitudes, accounting for 17% of the variance in their scale score. These results provide additional support for the construct validity of this scale.

Adolescent↗

[Development of an instrument to measure self-care agency for the chronic ill in later adulthood--the first step of development].

The purpose of this study was to develop the instrument to measure self-care agency for the Japanese chronic ill in later adulthood and to test reliability and validity of that. First, the Self-Care Agency instrument draft which consists of 56 items rated along a 5-point Likert scale was developed. This draft was based upon the work of Orem (1991) and qualitative data of the Japanese chronic patients. Second, reliability and validity of this instrument was tested. The instrument was reviewed by 5 expert nurses and 16 nursing researchers for content validity. And this instrument was reviewed by 19 Japanese chronic patients for face validity. By result of content validity and face validity, this draft was refined. Next, the internal consistency, stability, and construct validity of this refined instrument was tested. The internal consistency of the instrument, as measured by the Cronbach's alpha, was 0.90 for a sample of 200 Japanese chronic patients. This instrument had a test-retest coefficient of r = 0.86 for a sample of 104 Japanese chronic patients. Using factor analytic techniques, five subscales emerged. These subscales gave some agreement with subscales that had been obtained before factor analysis. Therefore, construct validity of the instrument was established in some degree. And the subscale 'get a valid support' which emerged in this instrument was reflect Japanese cultural factor. Reliability and validity of this instrument were obtained in some degree. Further, it is necessary to refine this instrument, considering this research result.

Adult↗

Well-being of intensive care nurses (WEBIC): a job analytic approach.

AIMS OF THE STUDY: This paper presents the results of a validation study of the so-called well-being of intensive care nurses (WEBIC)-questionnaire that is designed to perform a detailed job analysis of intensive care unit (ICU) nurses' jobs. BACKGROUND: The WEBIC-questionnaire is based on modern sociotechnical systems theory, and distinguishes four integrated task categories: (1) operational, (2) organizing, (3) preparatory, and (4) supportive tasks. For each task, the WEBIC assesses (1) how demanding this task is, and (2) how satisfying the performance of this task is. Using the WEBIC, information is gathered about ICU nurses' qualitative workload, and typical job-related risks for ICU nurses' well-being at work can be mapped. METHODS: A cross-sectional survey on work and well-being of almost 2000 ICU-nurses in 13 different European areas was conducted. Exploratory factor analyses were performed to study the validity of the factorial structure of the WEBIC-questionnaire. The construct validity of the WEBIC-questionnaire was studied by performing hierarchical multiple regression analyses of the WEBIC-factors on two types of job-related well-being, i.e. burnout and general job satisfaction. RESULTS: Results of the exploratory factor analyses showed that the hypothesized four-factor structure of the WEBIC is confirmed by our data. Internal consistencies of the different factors varied from 0.77 to 0.91. Intensive care unit nurses' most central (operational) tasks turned out to pose the greatest demands, but also seemed to drive their satisfaction. With respect to the relationships between the four WEBIC-factors, and burnout and general job satisfaction, it was found that, especially for the satisfying tasks, significant relationships with these outcomes were found. CONCLUSION: The reliability and construct validity of the WEBIC-questionnaire can be considered satisfactory. Furthermore, the questionnaire provides a systematical and detailed coverage of ICU nurses' tasks. In relation to this, the questionnaire is not only useful for scientific purposes but also for practical use.

Adult↗

Construction of a personal development competitive attitude scale.

Theory development and research in the area of psychologically healthy competition has been impeded by the lack of a psychometrically sound instrument. Four studies were conducted as part of a research program designed to remedy this deficiency by constructing an individual difference measure of general personal development competitive attitude with satisfactory psychometric properties. In Studies 1 and 2, a 15-item scale was derived primarily through item-total correlational analysis; it demonstrated satisfactory internal and test-retest reliabilities. Studies 3 and 4 were concerned with establishing the construct validity of the scale. Both Studies 3 and 4 showed the scale's discriminant validity through its lack of association with hypercompetitiveness. In addition, its construct validity was seen in its negative association with neurosis and its positive links with personal and social self-esteem and optimal psychological health. Also, as expected, personal development competitiveness was positively correlated with needs for affiliation, whereas hypercompetitiveness was unrelated to affiliation needs. Although hypercompetitive individuals were more aggressive, dominant, and exhibitionistic, this was not the case for personal development competitors.

Adolescent↗

Validation of the theory: satisfaction with time-delimited daily occupations.

OBJECTIVES: This study examines the construct validity of the theory Satisfaction with time-delimited daily occupations (STO). The outcome of STO concerns how individuals perceive their occupational health status and to what degree the individuals experience satisfaction with their performance of time-delimited daily occupations. DESIGN: The "known-groups technique" was used for discriminating the occupational health status among four groups (n = 147) of full-time workers or sick-listed participants. A mailed ActivityLog-sheet was used for recording their occupational health 24 times during 24 hours. The computerized program ActivityLog was used for data registration. The data analysis were accounted by ANOVA, Tukey's HSD test with significance level of p < 0,05 using the SPSS program. RESULTS: The occupational health status did not differ significantly among the four groups, but the number of records concerning work (p = 0,00) and care (p = 0,02) time-delimited daily occupations were significantly different. The patterns of occupational health status during the 24-hour-records were visually separated for the four groups. CONCLUSION: There is need for refining the STO theory and then for undertaking further investigations of the STO construct validity.

Journal Article↗