Response bias in self-report measures of general health

This study set out to examine the susceptability of two widely used, self-report, psychiatric inventories to response set bias. Subjects were requested to either fake well (physically and psychologically fit), fake psychologically ill, fake physically ill or respond honestly on the General Health Questionnaire (GHQ) and the Langner Scale of Distress (L-22). Predictably subjects who faked well had significantly lower scores than either of the other two experimental groups, however there was no difference between the Fake Well and Control group on the GHQ total or the Somatic and Depression scales. Subjects who faked psychologically ill showed 4 out of 11 significant differences between those who faked physically ill. All of the comparisons between the two Fake Ill groups, and the Well and Control groups, were statistically significant the former reporting higher incidences of distress than the latter. The results are discussed in terms of questionnaire design, subject motivation and alternative methods of assessing mental health.     

Dare to compare: Fact-based versus simulation-based comparison in daily life

We examined the relative frequency of social, counterfactual, past-temporal, and future-temporal comparison in daily life using an experience-sampling method, in which participants were randomly prompted to record thought samples using palmtop computers carried for two weeks. Comparative thought accounted for 12% of all thoughts, and all four comparison types occurred with equivalent frequency. Comparisons may be either fact-based (i.e., based on actuality, as in social and past-temporal comparison) or simulation-based (i.e., based on imagination, as in counterfactual and future-temporal comparison). Because the latter are more “unbounded,” and because greater perceived opportunity invites greater self-improvement, we predicted and found that counterfactual and future-temporal comparison were more likely to be upward (vs. downward) than social and past-temporal comparison. All comparison types focused on approach more than avoidance motives, except for counterfactuals, which showed equivalent focus on both. These findings reveal the prominence of comparative thought in daily life, and underscore the value of an integrative theory that describes social, counterfactual, or temporal comparison using a common theoretical platform.     

Personality and intelligence as predictors of creativity

Participants completed the Big Five NEO-FFI (Costa & McCrae, 1992) as a personality measure, the Wonderlic Personnel Test (Wonderlic, 1992) as an intelligence measure, and four measures of creativity: Guilford’s (1967) unusual uses divergent thinking test; the Biographical Inventory of Creative Behaviours; a self-rated measure of creativity; and the Barron–Welsh Art Scale to measure creative judgement. Extraversion was significantly related to all four measures of creativity. Intelligence failed to add any incremental variance in predicting the creativity scores. Multiple regression indicated that up to 47% of the variance in divergent thinking scores can be accounted for by the Big Five personality traits. Personality correlates to creativity vary as a function of the creativity measure.     

Relations Between Continuous Performance Test Performance Measures and ADHD Behaviors

The Conners' Continuous Performance Test (CPT) is a neuropsychological task that has repeatedly been shown to differentiate ADHD from normal groups. Several variables may be derived from the Conners' CPT including errors of omission and commission, mean hit reaction time(RT), mean hit RT standard error, d', and . What each CPT parameter actually assesses has largely been based upon clinical assumptions and the face validity of each measure (e.g., omission errors measure inattention, commission errors measure impulsivity). This study attempts to examine relations between various CPT variables and phenotypic behaviors so as to better understand the various CPT variables. An epidemiological sample of 817 children was administered the Conners' CPT. Diagnostic interviews were conducted with parents to determine ADHD symptom profiles for all children. Children diagnosed with ADHD had more variable RTs, made more errors of commission and omission, and demonstrated poorer perceptual sensitivity than nondiagnosed children. Regarding specific symptoms, generalized estimating equations (GEE) and ANCOVAs were conducted to determine specific relationships between the 18 DSM-IV ADHD symptoms and 6 CPT parameters. CPT performance measures demonstrated significant relationships to ADHD symptoms but did not demonstrate symptom domain specificity according to a priori assumptions. Overall performance on the two signal detection measures, d' and , was highly related to all ADHD symptoms across symptom domains. Further, increased variability in RTs over time was related to most ADHD symptoms. Finally, it appears that at least 1 CPT variable, mean hit RT, is minimally related to ADHD symptoms as a whole, but does demonstrate some specificity in its link with symptoms of hyperactivity.     

A study of the antecedents and consequences of psychological ownership in organizational settings

Psychological ownership is a feeling of possession in the absence of any formal or legal claims of ownership. In this study, the authors aimed to extend previous empirical testing of psychological ownership in work settings to encompass both job-based and organization-based psychological ownership as well as related work attitudes and behavioral outcomes. Questionnaire data from 68 employees and their managers revealed that job-based psychological ownership and organization-based psychological ownership are distinct work attitudes that are distinguishable from job satisfaction and organizational commitment. Psychological ownership predicted job satisfaction and organizational commitment and mediated the relationship between autonomy and these work attitudes. There was no support for a relationship between psychological ownership and behavioral outcomes. The authors discuss the limitations of the study and the implications of psychological ownership.