Faktorenanalytische Untersuchungen zur Differenzierungshypothese der Intelligenz: Die Leistungsdifferenzierungshypothese

Ohne ZusammenfassungIn gekürzter Form anläßlich der 5. Tagung experimentell arbeitender Psychologen am 10. 4. 1963 in Tübingen vorgetragen.     

Personality,interview faking,and the mediating role of attitudes,norms, and perceived behavioral control

This study investigated the psychological processes underlying interview faking, and that link personality to interview faking. In a sample of 198 recent interviewees, surveyed across three time points, we examined the mediating role of three constructs from the theory of planned behavior (TPB; i.e., attitudes, subjective norms, and perceived behavioral control) in explaining the relationship between the traits of Honesty–Humility and Conscientiousness and one form of interview faking (i.e., extensive image creation). Results indicated that all three TPB constructs correlated with interview faking, although only attitudes and subjective norms predicted faking incrementally. Attitudes and norms mediated the relationships between Honesty–Humility and Conscientiousness and interview faking. This study provides insight into interview faking, and the link between personality and interview faking.     

Barriers and facilitators affecting the sustainability of dialectical behaviour therapy programmes: A qualitative study of clinician perspectives

Dialectical behaviour therapy (DBT) is a psychological treatment developed for individuals experiencing chronic suicidality and high‐risk behaviours. Despite the substantial evidence supporting the effectiveness of DBT, many programmes have problems with its sustainability. The goals of the current qualitative study were to identify factors that impact the sustainability of DBT programmes within a publicly funded mental health system and identify factors that are particularly relevant for youth DBT programmes. Interviews with trained adult and youth DBT clinicians (N = 31) were conducted to explore their experiences providing DBT. Three major themes that emerged as barriers to the sustainability of DBT programmes included the following: systemic challenges, conflicts within the consultation teams and clinician burnout. Factors influencing the success of DBT programmes included the following: systemic support, clinician commitment and “buy in”, and team cohesion. Factors specific to providing DBT with youth (i.e. level of commitment, simplifying the language, and parental investment) and recommendations for sustainability for adults and youth programmes were also identified. Findings of this study provide valuable information on factors impacting DBT programmes within the unique context of a Canadian mental health service system, where community‐based services are publicly funded. These findings have clear clinical utility and can be used to generate solutions to clinicians' perceived barriers and to foster perceived facilitators within similar contexts.     

Searching for reliable relationships with statistics packages: an empirical example of the potential problems

Many social scientists appear to possess an overconfidence in the reliability of research results from a single, small-sample, inferential study. In this article, the authors speculate that "user-friendly" statistics packages have the potential to exacerbate statistical misinterpretation by providing researchers with a tool to explore data easily and identify what is interpreted as "reliable" relationships. This article contains an empirical demonstration of the potential problems that arise when a large number of statistical tests are interpreted. Results show that statistically significant results may be unreliable. Also, a zero relationship can erroneously appear as a medium to large effect size relationship when a small sample is used (e.g., n = 30). The authors suggest the need for multiple replications as the criterion of a reliable finding.     

Evaluating gene x psychological risk factor effects in the pathogenesis of anxiety: a new model approach

The present study evaluated the singular and interactive effects of a functional polymorphism (variation) in the serotonin transporter (5-HTT) gene and a psychological trait (anxiety sensitivity [AS], i.e., fear of arousal symptoms) in predicting subjective and physiological responses to a 35% carbon dioxide (CO2) challenge in a community sample (N = 72). Genotypes were divided into 2 groups in accord with prior research. Findings were partially supportive of the hypothesized risk model. These indicated that the Group L genotype (homozygous for the 1 allele), compared with the Group S genotype (homozygous for the s allele plus heterozygous individuals), predicted greater fearful response to the biological challenge. There was also an AS x Genotype interaction predicting heart rate variability (HRV) in response to the CO2, suggesting that high AS plus Group L status predicts decreased HRV.     

Visual perception of mean relative phase and phase variability

Perception of relative phase and phase variability may play a fundamental role in interlimb coordination. This study was designed to investigate the perception of relative phase and of phase variability and the stability of perception in each case. Observers judged the relative phasing of two circles rhythmically moving on a computer display. The circles moved from side to side, simulating movement in the frontoparallel plane, or increased and decreased in size, simulating movement in depth. Under each viewing condition, participants observed the same displays but were to judge either mean relative phase or phase variability. Phase variability interfered with the mean-relative-phase judgments, in particular when the mean relative phase was 0 degrees. Judgments of phase variability varied as a function of mean relative phase. Furthermore, the stability of the judgments followed an asymmetric inverted U-shaped relation with mean relative phase, as predicted by the Haken-Kelso-Bunz model.