Factor Analysis of the Nisonger Child Behavior Rating Form in Children with Autism Spectrum Disorders

The Nisonger Child Behavior Rating Form (NCBRF) is a behavior rating scale designed for children and adolescents with mental retardation. The purpose of this study was to explore the psychometric properties of the NCBRF in a sample of 330 children and adolescents with autism spectrum disorders (ASDs). Parent and teacher ratings were independently submitted to both exploratory and confirmatory factor analysis. As reported with the original validation study, parent and teacher versions shared similar but somewhat different factor structures. Social competence items showed more similarity with the original solutions than did problem behavior items. Problem behavior items were distributed into a somewhat simpler five-factor solution for both rating forms. Self-injurious and stereotypic items loaded on two distinct subscales for the teacher form, but not on the parent form. Factor loadings and internal consistencies were generally lower than those reported for the original versions but still within the acceptable range. Confirmatory factor analyses indicated good fits for the social competence items and acceptable fits for the problem behavior items. Overall, results supported the construct validity of the NCBRF in children and adolescents with ASDs.     

A comparison of reliability and construct validity between the original and revised versions of the Rosenberg Self-Esteem Scale

Objective

The Rosenberg Self-Esteem Scale (RSES) is a widely used instrument that has been tested for reliability and validity in many settings; however, some negative-worded items appear to have caused it to reveal low reliability in a number of studies. In this study, we revised one negative item that had previously (from the previous studies) produced the worst outcome in terms of the structure of the scale, then re-analyzed the new version for its reliability and construct validity, comparing it to the original version with respect to fit indices.

Methods

In total, 851 students from Chiang Mai University (mean age: 19.51±1.7, 57% of whom were female), participated in this study. Of these, 664 students completed the Thai version of the original RSES - containing five positively worded and five negatively worded items, while 187 students used the revised version containing six positively worded and four negatively worded items. Confirmatory factor analysis was applied, using a uni-dimensional model with method effects and a correlated uniqueness approach.

Results

The revised version showed the same level of reliability (good) as the original, but yielded a better model fit. The revised RSES demonstrated excellent fit statistics, with χ²=29.19 (df=19, n=187, p=0.063), GFI=0.970, TFI=0.969, NFI=0.964, CFI=0.987, SRMR=0.040 and RMSEA=0.054.

Conclusion

The revised version of the Thai RSES demonstrated an equivalent level of reliability but a better construct validity when compared to the original.     

Construct validity of the Nutrition and Activity Knowledge Scale in a French sample of adolescents with mild to moderate intellectual disability

The purpose of this study was to test the reliability (i.e. internal consistency and test–retest reliability) and construct validity (i.e. content validity, factor validity, measurement invariance, and latent mean invariance) of the Nutrition and Activity Knowledge Scale (NAKS) in a sample of French adolescents with mild to moderate Intellectual Disability (ID). A total sample of 260 adolescents (144 boys and 116 girls), aged between 12 and 18 years old, with mild to moderate ID was involved in two studies. In the first study, analysis of items’ content reveals that many words from the original version were not understood or induced confusion. These items were reworded and simplified while retaining their original meaning. In the second study, results provided support for: (i) the factor validity and reliability of a 15-item French version of the NAKS; (ii) the measurement invariance of the resulting NAKS across genders and ID levels; (iii) the partial measurement invariance of the resulting NAKS across age groups and type of school placement. In addition, the latent means of the 15-item French version of the NAKS proved to be invariant across gender, age categories, and ID levels, but to vary across type of school placement (with adolescents schooled in self-contained classes from regular schools presenting higher levels of NAK than adolescents placed in specialized establishments). The present results thus provide preliminary evidence regarding the construct validity of a 15-item French version of the NAKS in a sample of adolescents with ID.     

情感气质自评问卷青少年中文版的修订及信效度检验☆

目的根据情感气质自评问卷中文版,修订更适合青少年群体的情感气质自评问卷青少年中文版,并检验其信度及效度。方法基于之前修订的情感气质自评问卷中文版每个条目的因子负荷,并考虑青少年期的心理发展特点、各个因子条目数量以及内容适应性等因素,最后形成60条目的情感气质自评问卷青少年中文版,对822名11~17岁青少年进行问卷调查,评估该问卷内部一致性信度、结构效度,并比较各因子的性别差异。结果抑郁气质、环性气质、情感旺盛气质、易激惹气质以及焦虑气质因子条目的 Cranbach’sα系数分别为0.67、0.78、0.76、0.77及0.83。探索性因子分析显示焦虑气质、易激惹气质、情感旺盛气质因子可有效区分,而抑郁气质与环性气质的条目则混合在一起。女性在抑郁气质[(3.521±2.221)vs.(3.144±2.295)]、环性气质[(4.484±2.922)vs.(3.917±2.823)]、焦虑气质[(5.236±3.719)vs.(4.366±3.658)]因子的得分高于男性(P0.05),而男性情感旺盛气质因子得分则高于女性[(5.407±2.842)vs.(4.852±2.963),P0.01]。抑郁气质与环性气质因子得分呈正相关(r=0.625,P0.001),焦虑气质与易激惹气质因子得分呈正相关(r=0.628,P0.001)。结论情感气质自评问卷青少年中文版具有一定的内部一致性信度及结构效度,适用于中国青少年群体情感气质的测量。     

Is adjustment disorder unidimensional or multidimensional? Implications for ICD‐11

In preparation for ICD‐11, the adjustment disorder (AjD) diagnosis has undergone considerable revisions; however, the latent structure of AjD remains uncertain. It is unclear whether AjD is best represented as a unidimensional or multidimensional construct. This study performed a comprehensive assessment of the latent structure of AjD symptomatology and assessed its concurrent and discriminant validity. Individuals who experienced involuntary job loss (N = 333) completed a self‐report measure of AjD symptoms. Seven alternative models of AjD were tested using confirmatory factor analysis. General psychological distress, impairment in social functioning, occupational self‐efficacy, and sense of coherence were used as criterion variables for construct validity. In the confirmatory factor analysis, a bifactor solution with one dominant general AjD factor and 5 correlated group factors (preoccupation, failure‐to‐adapt, avoidance, affective reaction, and impulsivity) provided optimal fit. As expected, the AjD factor showed strong positive associations with general psychological distress and impairments in social functioning and moderately negative associations with occupational self‐efficacy and sense of coherence. With regard to unidimensionality or multidimensionality of AjD symptoms, the current results indicate the plausibility of a unidimensional conceptualization. Future research should focus on essential key characteristics and a reduction of symptoms for the AjD definition.     

Validation of the Mood and Anxiety Symptom Questionnaire in Korean Adolescents

ObjectiveThe tripartite model categorizes symptoms of depression and anxiety into three groups: 1) non-specific general distress that is shared between depression and anxiety, 2) depression-specific symptoms that include low positive affect and loss of interest, and 3) anxiety-specific symptoms that include somatic arousal. The Mood and Anxiety Symptoms Questionnaire (MASQ) was developed to measure these three factors of depression and anxiety. The purpose of the present study was to test the psychometric properties of the Korean version of the MASQ (K-MASQ) in adolescents.MethodsCommunity-dwelling adolescents (n=933) were randomly assigned to two groups. Exploratory factor analysis and confirmatory factor analysis were conducted in each group to identify the factor structure of the K-MASQ. The reliability and validity of the K-MASQ were also evaluated.ResultsOur results support the three-factor structure of the K-MASQ in adolescents. However, we found that the specific items of each factor differed from those of the original MASQ. That is, the depression-specific factor was only related to low positive affect and not loss of interest, and the anxiety-specific factor included more items related to general somatic symptoms of anxiety. The reliability and validity of the K-MASQ were found to be satisfactory.ConclusionThe K-MASQ supports the tripartite model of depression and anxiety and has satisfactory reliability and validity among Korean adolescents. The K-MASQ can be used to distinguish unique symptoms of depression and anxiety in Korean adolescents.     

The self-image of Greek,Greek-migrant and German adolescents

This paper provides an empirical perspective on the relationship between immigration and selfimage in a sample of German and Greek adolescents. The subjects were Greeks (non-migrants,n=128), Germans (n=103) and Greek migrants living in West Germany (n=103). The Offer Self-image Questionnaire (OISQ) was used as a multidimensional measure of psychological, social and sexual self, and family relations. Comparisons were made between the mean scores of the three national groups on subscales of the OSIQ. Greek migrants had quite distinct self-image profiles that were intermediate between non-migrating Greeks and native Germans. Gender and age differences in self-image were pronounced in sub-scales of the OSIQ. Migrants were more emotional than non-migrants, less introverted, more liberal in their sexual attitudes and displayed superior adjustment. Compared with their German counterparts, migrants emerged as more impulsive and emotional, with an inferior body image, higher achievement motivation, lower mental ill-health but with higher adjustment. The results showed that when both Greek samples (non-migrants and migrants) were taken together and compared to Germans then differences emerged and indicated small but significant cross-cultural differences in personality.     

Psychometric evaluation of a measure of Beck's negative cognitive triad for youth: applications for African-American and Caucasian adolescents

A measure of Beck's negative cognitive triad, the Cognitive Triad for Children (CTI-C), was evaluated for its psychometric properties and utility with a community sample of 880 African-American and Caucasian adolescents. High-school students ranging from 14 to 17 years of age completed the CTI-C, the Children's Depression Inventory (CDI) and the Children's Attributional Style Questionnaire-Revised (CASQ-R) on two occasions 4 months apart. The CTI-C was found to be internally consistent, Cronbach's alpha=.90, to have acceptable test-retest reliability, r=.70, and concurrent validity as demonstrated by a significant correlation with the CASQ-R, r=.53. A principal factor analysis with promax rotation did not yield support for Beck's tripartite model of negative cognitions about the self, world, and future but rather yielded three factors with a combination of cognitions from all three domains. African American adolescents who reported more maladaptive cognitions on the CTI-C reported fewer depressive symptoms on the CDI 4 months later compared to their Caucasian counterparts, suggesting some limitation to using the CTI-C to predict depressive symptoms in African-American youth; however, Factor 1 derived from a factor analysis with the sample was more consistent in predicting future symptoms among both African-American and Caucasian adolescents. This factor consisted largely of positively worded items, offering some support for low positive affect as a predictor of depressive symptoms in adolescents.     

Cross-cultural invariance of the Academic Expectations Stress Inventory: Adolescent samples from Canada and Singapore

We provide further evidence for the two-factor structure of the 9-item Academic Expectations Stress Inventory (AESI) using confirmatory factor analysis on a sample of 289 Canadian adolescents and 310 Singaporean adolescents. Examination of measurement invariance tests the assumption that the model underlying a set of scores is directly comparable across groups. This study also examined the cross-cultural validity of the AESI using multigroup confirmatory factor analysis across both the Canadian and Singaporean adolescent samples. The results suggested cross-cultural invariance of form, factor loadings, and factor variances and covariances of the AESI across both samples. Evidence of AESI's convergent and discriminant validity was also reported. Findings from t-tests revealed that Singaporean adolescents reported a significantly higher level of academic stress arising from self expectations, other expectations, and overall academic stress, compared to Canadian adolescents. Also, a larger cross-cultural effect was associated with academic stress arising from other expectations compared with academic stress arising from self expectations.     

Exploring the factor structure of the La Trobe Communication Questionnaire: Insights into the nature of communication deficits following traumatic brain injury

Background: Self and close other reports of communication ability can provide a time‐efficient means of evaluating conversational discourse after traumatic brain injury (TBI). The La Trobe Communication Questionnaire (LCQ) measures perceived communication ability from various sources including self‐perceptions and perceptions of others. Content and test–retest reliability and discriminant validity of the LCQ have been demonstrated previously with adults following TBI.

Aims: This study was undertaken to explore the factor structure of the LCQ as revealed within the data collected from 88 adults with severe TBI and their close others.

Methods & Procedures: Construct validity was examined using a Principal Component Factor Analytic procedure with Varimax rotation.

Outcomes & Results: A seven‐factor structure that accounted for 60.88% of the variance was revealed. Of the LCQ items, 27 clearly loaded on to one of the seven communication factors that were identified.

Conclusions: The factor structure that emerged depicts the multidimensional nature of conversation and the complex interplay between cognitive and communication processes that social discourse demands. These results support the construct validity of the LCQ and indicate that it can be used as a reliable and valid measure of communication ability after severe TBI.     

Self-image of adolescents with diabetes mellitus type-I and rheumatoid arthritis

The purpose of this research was to determine possible differences in the self-concept of chronically ill and healthy adolescents. A group of adolescents with diabetes mellitus type-I (DM) and a group with rheumatoid arthritis (RA) were chosen for the study, together with a control group without any chronic illness. The groups were matched for gender, age (DM 17.8, RA 17.9, control group 17.6 years) and social class. The Offer Self-Image Questionnaire (OSIQ) was used to estimate differences between the groups of 23 DM adolescents, 25 RA adolescents and 26 control group adolescents. The scores are reversed; thus the higher the score, the better the self-image. The results indicate that Body Image, and Vocational and Educational Goals were lower in the groups of chronically ill adolescents than in the control group; however, no statistically significant differences were found between the groups on the OSIQ scales. The self-image of adolescents with DM with good metabolic control and moderate and long-lasting RA is relatively well developed.     

Social Anxiety Scale for Adolescents (SAS-A): Measuring Social Anxiety Among Finnish Adolescents

The aim of this study was to investigate symptoms of social anxiety and the psychometric properties of the Social Anxiety Scale for Adolescents (SAS-A) among Finnish adolescents, 13–16 years of age. Study 1 (n = 867) examined the distribution of SAS-A scores according to gender and age, and the internal consistency and factor structure of the SAS-A. In a subsample (n = 563; Study 2) concurrent and discriminant validity of the SAS-A were examined relative to the Social Phobia Inventory and the Beck Depression Inventory. Test–retest stability was examined over a 30-month period by repeated measures every 6 months in another subsample (n = 377; Study 3). Results mostly revealed no gender differences in social anxiety, except that boys reported more general social avoidance and distress than girls. Older adolescents (14–16-year-olds) reported higher social anxiety than younger adolescents (12–13-year-olds). Internal consistency for the SAS-A was acceptable for both genders and for all three SAS-A subscales. Confirmatory factor analysis replicated the original 18-item three-factor structure of the SAS-A, accounting for 61% of the variance between items. Evidence for concurrent and discriminant validity was found. Test–retest stability over 6 months was satisfactory. Results support the reliability and validity of the Finnish adaptation of the SAS-A, and further indicate that gender differences in adolescents’ social anxiety may vary across Western countries.     

Factorial structure of a short version of the Center for Epidemiologic Studies Depression Scale

OBJECTIVE: To investigate the factor structure of a ten-item version of the Center for Epidemiologic Studies Depression Scale (CESD-10). METHOD: Two hundred and thirty-one Chinese persons aged 60-92 were individually interviewed with the CESD-10. The data were subject to confirmatory factor analysis testing several competing models. The one-factor model hypothesizes that all ten items are loaded on a single factor. In the two-factor model, positive affect items are loaded on one factor, and the remaining items on the other. The three-factor model distinguishes between positive affect, depressed affect, and somatic symptoms. RESULTS: The three-factor model was the best fitting model, with a comparative fit index of 0.95 and a standardized root mean square residual of 0.06. Depressed affect and somatic symptoms were highly correlated, and both were moderately correlated with positive affect. Nonetheless, all three factors appeared to tap a common underlying construct of depression-when a higher-order construct of depression was allowed to explain the intercorrelations of the three factors, depressed affect loaded at 0.88, somatic symptoms loaded at 0.92, and positive affect loaded at 0.51, on the higher-order construct. CONCLUSION: The data provided support for the factorial validity of the CESD-10.     

Developing a new assessment procedure of social information processing in adolescents within secure residential care

The purpose of the present study was to develop a new assessment procedure of social information processing (SIP) for adolescents, to explore its validity and to examine whether it differentiated between IQ groups. Ninety-four adolescents within secure residential care were administered the SIP instrument, the Youth Self Report and two subtests of the WISC/WAIS. Results showed that the constructs underlying the items of the instrument were associated with profiles from the SIP theory, the subsequent SIP steps were correlated, and several SIP steps were correlated to self-reported behavior. No differences were found between IQ groups. These first results have implications for adjustment of the instrument. Further research should confirm construct validity and psychometric qualities of the scales.     

Self-image of adolescents with diabetes mellitus type-I and rheumatoid arthritis

The purpose of this research was to determine possible differences in the self-concept of chronically ill and healthy adolescents. A group of adolescents with diabetes mellitus type-I (DM) and a group with rheumatoid arthritis (RA) were chosen for the study, together with a control group without any chronic illness. The groups were matched for gender, age (DM 17.8, RA 17.9, control group 17.6 years) and social class. The Offer Self-Image Questionnaire (OSIQ) was used to estimate differences between the groups of 23 DM adolescents, 25 RA adolescents and 26 control group adolescents. The scores are reversed; thus the higher the score, the better the self-image. The results indicate that Body Image, and Vocational and Educational Goals were lower in the groups of chronically ill adolescents than in the control group; however, no statistically significant differences were found between the groups on the OSIQ scales. The self-image of adolescents with DM with good metabolic control and moderate and long-lasting RA is relatively well developed.     

Initial validation of the Chinese Quality of Life Questionnaire-Intellectual Disabilities (CQOL-ID): a cultural perspective

Background In the field of intellectual disabilities (ID), the quality of life concept has been developing rapidly in Chinese societies including Hong Kong, mainland China and Taiwan. However, there is a lack of locally validated instruments to measure the quality of life of people with ID. The study reported in this paper attempted to validate the Chinese Quality of Life Questionnaire – Intellectual Disabilities adapted from the Quality of Life Questionnaire developed by Schalock & Keith. Methods People with mild/moderate ID aged 15 years or above were recruited from special schools, skills centres, community service units and residential units in different regions of Hong Kong. A number of procedures were followed including reliability tests, factor analysis, content validity and construct validity. Results A total of 359 participants were recruited for the study. Factor analysis was conducted according to the rotated component matrix method, in which 23 items were extracted from the original 40‐item version of the Quality of Life Questionnaire and three domains (renamed satisfaction, competence and daily choice making/interpersonal relations) were observed. The items in each domain were shown to have factor loadings ranging from 0.42 to 0.90. Construct validity tests indicated the positive nature of the relationship between earnings, and that self‐determination and social interaction increase with more independent living environments and less segregated work environments achieving higher scores (P < 0.000, P < 0.01 and P < 0.05 respectively). The scale also achieved a good degree of reliability (Cronbach's α = 0.79). Conclusions Initial validity tests indicated that the Chinese Quality of Life Questionnaire – Intellectual Disabilities may be a useful instrument for measuring the quality of life of Chinese people with ID. Cultural issues are discussed and recommendations for future research and service development are made.     

Psychometric properties of the Strength and Difficulties Questionnaire from five European countries

The Strength and Difficulties Questionnaire (SDQ) is a brief screening instrument for assessing emotional and behavioural problems in children and adolescents. This study examined the factor structure and validity of the self‐report original English version of the SDQ and four of its many translations (German, Cypriot Greek, Swedish, and Italian). A total of 2418 adolescents from five European countries (Germany, Cyprus, England, Sweden, Italy), ages 12 to 17 years, participated. The sample was drawn from general (school) populations. In addition to the SDQ, all participants completed the Spence Children's Anxiety Scale (SCAS), a measure of anxiety symptoms. The internal consistency and validity of the SDQ total difficulties were good for most countries. Confirmatory factor analysis showed that both five‐ and three‐factor models provided good fit for the whole sample; however, the three‐factor model fit somewhat better than the five‐factor model. The factor structure differed across countries, with the three‐factor model showing better fit indices in Cyprus, whereas the five‐factor model fitted better in Germany. Fit indices for the UK, Sweden, and Italy were poor for both models. When the reversed items were removed, the goodness‐of‐fit improved significantly for the total sample and in each country. It is therefore recommended that the reversed items be removed or re‐worded in future studies. Copyright © 2012 John Wiley & Sons, Ltd.     

Inferiority in normal and anxious populations

BACKGROUND: The construct of inferiority can be defined as an intimate, unrealistic and persistent conviction to be always low-ranking in merit, value, intellectual and/or physical capacities (Weiner et Mohl, 1996; Yao et al., 1996). This can be considered as an important cognitive factor in anxiety disorders. But, does a feeling of inferiority also exist in normal subjects? We hypothesized that the feeling of inferiority might be a normal phenomenon if it is a transient experience, in relation to external events, and represents an aspect of self esteem. The Inferiority Scale (Yao et al., 1998), aimed at measuring the feeling of inferiority in anxiety, is a self-report instrument including 17 items assessing self-appraisal of inferiority and 17 items assessing inferiority linked to others' judgements. It showed good psychometric properties of reliability and validity in previous studies. The aim of our study was to confirm the existence of inferiority feeling in non-clinical subjects, and its continuity between normal and anxious populations. Method - We included 264 non-clinical subjects in the study. The mean age of the sample was 30.38 years old (SD=10.25) and 36% (94 Ss) were men. The anxious population was composed with 57 subjects suffering from obsessive compulsive disorder (OCD) and 43 patients with social phobia according to DSM IV. The mean age of this population was 34.0 years old (SD=10.6) and 51% of them were men. The Inferiority Scale was used in our study for evaluating the feeling of inferiority. RESULTS: Most of non-clinical subjects reported low inferiority feelings and a part of the non-clinical subjects (15%) presented a moderate or strong feeling of inferiority, on the Inferiority Scale. The non-clinical subjects group was divided into two sub-groups (Low and High Inferiority) with the median of the Inferiority Scale total score. The total score and the sub-scores of the Inferiority Scale were all significantly higher in the two anxiety groups than in the two non-clinical sub-groups (p<0.0001) and higher in non-clinical subjects with high inferiority, compared to those with low inferiority (p<0.0001). Noting that the social phobic group presented higher scores of the Inferiority Scale than the OCD group (p=0.0058). There was a significant and negative correlation between age and the Inferiority Scale in non-clinical subjects, but there was no between-sex difference on the scale. CONCLUSION: Our results confirm the existence of inferiority feeling in non-clinical subjects and suggest the existence of continuity of inferiority feeling as a psychological trait between normal and pathological populations.