Clinical validation of the trait and state versions of the Food Craving Questionnaire

This is the first study to evaluate the psychometric properties of the Food Craving Questionnaire-Trait (FCQ-T), and Food Craving Questionnaire-State (FCQ-S) measures using a clinically heterogeneous sample of eating disorder patients (N = 177) recruited from seven different outpatient eating disorder treatment centers in Spain. Confirmatory factor analyses (CFAs) corroborated the factor structures of the FCQ-T and FCQ-S. The measures' scores and their factor-derived scale-scores yielded internal consistency reliability indexes that ranged from adequate to excellent. The measures were predictive of eating disorder symptoms. As expected, the FCQ-T was more strongly associated with eating disorder psychopathology than the FCQ-S. The results replicated the psychometric properties of the FCQ-T and FCQ-S in eating disorder populations and could become useful tools in clinical and research settings.     

Development and validation of the trait and state versions of the Post-Event Processing Inventory

Background: Post-event processing (PEP) refers to negative and prolonged rumination following anxiety-provoking social situations. Although there are scales to assess PEP, they are situation-specific, some targeting only public-speaking situations. Furthermore, there are no trait measures to assess the tendency to engage in PEP. Objectives: The purpose of this research was to create a new measure of PEP, the Post-Event Processing Inventory (PEPI), which can be employed following all types of social situations and includes both trait and state forms. Design and method: Over two studies (study 1, N?=?220; study 2, N?=?199), we explored and confirmed the factor structure of the scale with student samples. Results: For each form of the scale, we found and confirmed that a higher-order, general PEP factor could be inferred from three sub-domains (intensity, frequency, and self-judgment). We also found preliminary evidence for the convergent, concurrent, discriminant/divergent, incremental, and predictive validity for each version of the scale. Both forms of the scale demonstrated excellent internal consistency and the trait form had excellent two-week test–retest reliability. Conclusion: Given the utility and versatility of the scale, the PEPI may provide a useful alternative to existing measures of PEP and rumination.     

The multidimensionality of state and trait anxiety

Abstract.— The two major problems investigated were ( a ) the multidimensionality of trait (A-Trait) and state (A-State) anxiety, and ( b ) the relationship between A-Trait and A-State under neutral conditions, using two measures of A-Trait (SR-GTA and STAI-T) and two measures of A-State (BRQ and STAI-S). These scales were administered to a sample of Swedish university students (54 males and 105 females). Factor analyses of the GTA situational scales yielded an interpersonal ego threat A-Trait factor and a physical danger A-Trait factor. Factor analyses of the GTA reaction scales and STAI-T reaction scales yielded, respectively, two and three factors providing evidence for the multidimensionality of A-Trait. Results of variance components analyses of the GTA scales provided further evidence for the multidimensionality of A-Trait. Factor analyses of the BRQand STAI-S measures yielded four and three factors, respectively, indicating the multidimensionality of A-State. The correlations between trait and state measures were higher than the correlations between the two state measures, and a factor analysis of the trait and state scales did not yield separate state and trait factors, questioning the proposition that A-Trait and A-State are distinct concepts. Via latent profile analysis, it was possible to compare A-State differences for different A-Trait profiles. Problems for further research were discussed.     

The interrelationship between state and trait variables

Sexes could be discriminated in terms of their personality profiles—females being less toughminded than males and tending to be more emotional. None of the state factors were shown to be different between sexes. Factorial analysis revealed that the 15 state scales were intimately interrelated: the first two factors extracted resembled fairly closely, E and N. Canonical analysis showed that personality traits are good predictors of emotional state. Discrimination analysis demonstrated that stables and unstables were clearly distinguishable in terms of state profile (exhibiting 12 significant differences along the 15 state scales).     

Situational effects in trait assessment: The FPI,NEOFFI, and EPI questionnaires

While most researchers do agree now that situations may have an effect in the assessment of traits, the consequences have been neglected, so far: if situations affect the assessment of traits we have to take this fact into account in studies on reliability and validity of measurement instruments and their application. In the theoretical part of this article we provide a more formal exposition of this point, introducing the basic concepts of latent state–trait (LST) theory. LST theory and the associated models allow for the estimation of the situational impact on trait measures in non-experimental, correlational studies. In the empirical part, LST theory is applied to three well known trait questionnaires: the Freiburg Personality Inventory, the NEO Five-Factor Inventory and the Eysenck Personality Inventory. It is shown that significant proportions of the variances of the scales of these questionnaires are due to situational effects. The following consequences of this finding are discussed, (i) Instead of the reliability coefficient, the proportion of variance due to the latent trait, the consistency coefficient, should be used for the estimation of confidence intervals for trait scores, (ii) To reduce the situational effects on trait estimates it may be useful to base such an estimate on several occasions, i.e., to aggregate data across occasions. (iii) Reliability and validity studies should not only be based on a sample of persons representative of those to whom the test will be applied; they should also be conducted in situational contexts representative of the intended applications.     

Trait anxiety and trait anger measured by ecological momentary assessment and their correspondence with traditional trait questionnaires

Ecological momentary assessments (EMA) of anxiety and anger/hostility were obtained every 25–30 min over two 24-h periods, separated by a median of 6 months, from 165 employees at a university in the Northeast. We used a multilevel trait-state-error structural equation model to estimate: (1) the proportion of variance in EMA anxiety and anger/hostility attributable to stable trait-like individual differences; (2) the correspondence between these trait-like components of EMA anxiety and anger/hostility and traditional questionnaire measures of each construct; and (3) the test–retest correlation between two 24-h averages obtained several months apart. After adjustment for measurement error, more than half the total variance in EMA reports of anxiety and anger/hostility is attributable to stable trait-like individual differences; however, the trait-like component of each construct is only modestly correlated with questionnaire measures of that construct. The 6-month “test–retest” correlations of latent variables representing the true 24-h EMA average anxiety and average anger are quite high (r ? 0.83). This study represents the longest follow-up period over which EMA-based estimates of traits have been examined. The results suggest that although the trait component (individual differences) of EMA momentary ratings of anxiety and anger is larger than the state component, traditional self-report questionnaires of trait anxiety and anger correspond only weakly with EMA-defined traits.     

The development and validation of the Relational Self-Esteem Scale

According to the tripartite model of the self (Brewer & Gardner, 1996), the self consists of three aspects: personal, relational, and collective. Correspondingly, individuals can achieve a sense of self-worth through their personal attributes (personal self-esteem), relationship with significant others (relational self-esteem), or social group membership (collective self-esteem). Existing measures on personal and collective self-esteem are available in the literature; however, no scale exists that assesses relational self-esteem. The authors developed a scale to measure individual differences in relational self-esteem and tested it with two samples of Chinese university students. Between and within-network approaches to construct validation were used. The scale showed adequate internal consistency reliability and results of the confirmatory factor analysis showed good fit. It also exhibited meaningful correlations with theoretically relevant constructs in the nomological network. Implications and directions for future research are discussed.     

The development and validation of the Body-Image Ideals Questionnaire

The Body-Image Ideals Questionnaire (BIQ) was developed as a unique attitudinal body-image assessment that considers one's perceived discrepancy from and degree of investment in personal ideals on multiple physical attributes. Reliability and validity of the 20-item instrument were examined for a sample of 284 college women. The results indicated that the BIQ consists of two relatively distinct and internally consistent Discrepancy and Importance subscales, as well as their multiplicative composite. The subscales' respective convergent validities vis-à-vis extant body-image measures and specific facets of personality (i.e., public self-consciousness and perfectionism) and psychosocial adjustment (i.e., social anxiety, depression, and eating disturbance) were confirmed. Evidence also supported the incremental validity of multiple self-ideal discrepancies. Effects due to socially desirable responding were inconsequential. Directions for needed basic and clinical research were identified.     

The validity of the mu index for differentiation of state and trait scales

For 443 men and women of the general population and mean age of 45.8 yr. state and trait measures were obtained on two occasions, 6 mo. apart. Internal consistencies at each time were similar (.84-.95). Test-retest coefficients were lower for measures of state concepts than for trait concepts. Howarth's mu indices were higher for state concepts than for trait concepts.     

Perfectionism and components of state and trait anxiety

The association between dimensions of perfectionism and state and trait anxiety was examined in three studies. Study 1 and Study 2 were correlational studies that investigated the link between dimensions of perfectionism (i.e., self-oriented, other-oriented, and socially prescribed perfectionism) and the Endler Multidimensional Anxiety Scales (EMAS). Taken together, the results indicated that self-oriented and socially prescribed perfectionsim are correlated significantly with both the cognitive-worry and autonomic-arousal components of state anxiety. As for the trait anxiety measures, self-oriented perfectionism was associated with the ambiguous and social evaluation facets in Study 1, and socially prescribed perfectionism was associated with the ambiguous and daily routines facets in Study 2. The purpose of Study 3 was to examine perfectionism and state anxiety under conditions of high versus low ego involvement. It was found that socially prescribed perfectionism was associated with higher state anxiety, but only in the high ego involvement condition. Self-oriented perfectionism was unrelated to state anxiety in either experimental condition. Overall, the findings indicate that socially prescribed perfectionism is the dimension linked most closely with components of state and trait anxiety, especially under conditions of ego threat. The results are discussed in terms of the need for an interactional approach to the study of the social aspects of both perfectionism and anxiety.     

Story-based scales: development and validation of questionnaires to measure subjective health status and cultural adherence in British Bangladeshis with diabetes

Questionnaires that measure subjective health status are increasingly used in clinical trials. But scales based on the quantification of subjective traits ("rate your feelings on a scale of 1 to 5") and initially developed in western population samples may not be valid for use in minority ethnic groups, even if accurately translated. The measurement of cultural adaptation and assimilation in immigrant groups is important for health research but has well documented methodological challenges. The aim of this study was to develop valid and reliable questionnaires to measure subjective health status and cultural adherence in a minority ethnic group, using the story as the unit of inquiry. The design was a multi-phase study involving (a) narrative interview, (b) vignette construction, (c) questionnaire development, and (d) questionnaire validation in relation to two scales (well-being and cultural adherence) in British Bangladeshis with diabetes. Using data from in-depth narrative interviews (i.e., a non-directive research technique in which the participant is invited to "tell me the story about your diabetes, starting with when you first noticed anything wrong", and the only prompts used are "tell me more about that" or "what happened next?"; Greenhalgh, Helman, & Chowdhury, 1998; Muller, 1999), we constructed culturally congruent vignettes to depict different subjective health states and behaviours. We refined these items in focus group interviews and validated the instruments on 98 Bangladeshi participants, randomly sampled from GP diabetes registers in inner London and interviewed by a Bangladeshi anthropologist. We used factor analysis to explore the underlying structure in the responses to questionnaire items, plus Cronbach alpha tests to measure internal consistency of scales. The questionnaires were acceptable and credible to Bangladeshi participants with diabetes. Ninety of 98 participants were able and willing to complete them with interviewer assistance. Following factor analysis, we produced two definitive instruments. The well-being scale was a single-factor model with four story-based items (measuring depression, anxiety, physical energy, and social activities), with a Cronbach's alpha of .92. The cultural adherence scale was a single-factor model with five items (measuring religious restrictions, ethnic practices, and social ties), with a Cronbach's alpha of .83. In conclusion, this study has produced two important outputs: (a) easy-to-administer, story-based questionnaires that measure well-being and cultural adherence, which are specific to British Bangladeshis with diabetes; (b) a general method for developing story-based instruments to quantify the subjective experience of illness and adherence to cultural norms, which potentially has applications beyond the study population.     

The development and initial validation of the Fatigue Sensitivity Questionnaire

ABSTRACT

Currently, there is poor understanding of fatigue and the possible psychological conditions that may underlie chronic fatigue. Although substantial work has been directed to better clinically address fatigue, no work has explored individual differences in expectations or perceptions of the negative consequences associated with fatigue-related symptoms. The goals of this study were to (a) develop and (b) validate a measure of expectations or perceptions of the negative consequences associated with fatigue-related symptoms (e.g. fatigue sensitivity) across two independent samples (N = 1,827; 73.1% female; M_age = 21.68; SD = 4.54) of young adults. Results supported a 10-item measure of fatigue sensitivity, entitled the Fatigue Sensitivity Questionnaire (FSQ). The FSQ demonstrated unidimensionality, excellent internal consistency, and strong convergent and discriminant validity. Overall, the 10-item scale offers a single score that can be employed to measure fatigue sensitivity. Clinically, the FSQ may be a brief, informative, and easily disseminated measure in better understanding and capturing expectations or perceptions about the negative consequences of fatigue. As a research tool, the use of the FSQ may provide broader understanding of vulnerability factors that may influence fatigue-related health outcomes. Future research is needed to test the validity of the FSQ in other samples.     

Regulation of exercise behaviour and motives for physical activities: The Italian validation of BREQ and MPAM-R questionnaires

Based on self-determination theory, the purpose of the present study was to provide the first Italian validation of two different instrument to assess the exercise behaviour: the Mullan et al.’s (1997) BREQ, which measures external, introjected, identified and intrinsic forms of regulation and Ryan et al.’s (1997) MPAM-R, which assesses five distinct motives for physical activity (appearance, health and fitness, social, competence, and enjoyment). Confirmatory factor analysis conducted on data collected from 1995 students attending three different secondary schools empirically supported respectively the four-factor structure of behavioural regulation and the five-factor structure of motives for physical activity, supporting convergent and discriminant validity of both scales. Furthermore, multi-group confirmatory factor analysis showed the invariance of the factor structures, structural parameters and correlations of the two scales across gender. Criterion-related validity of the scales also received partial empirical support. Finally, the factor structure of behavioural regulation and motives for physical activity was empirically supported when both constructs were included in a single measurement model.     

The development of a trait measure of ruminative thought

A 9-item questionnaire was designed to measure rumination. This questionnaire measures three distinct facets of rumination: emotionality, motivation, and distraction. Together, these factors measure the extent to which people engage in thoughts regarding their progress toward their goals. In Study 1, an exploratory factor analysis of an initial 28 items was used to reveal the underlying structure of the rumination construct. In Study 2, a confirmatory factor analysis revealed support for the hypothesized factor structure proposed by Study 1. Following the suggestions of PROC CALIS (SAS) for model modification, an acceptable model was found that retained 9 items (3 on each factor). Studies 3 and 4 demonstrate the predictive validity of the rumination inventory. Study 3 provides evidence of a correlation between distraction by ruminative thoughts and low scores on a statistics examination. Study 4 shows a negative correlation between distraction by ruminative thoughts and time taken to learn to solve a geometric puzzle.