Nonparametric tests for equality of psychometric functions

Many empirical studies measure psychometric functions (curves describing how observers’ performance varies with stimulus magnitude) because these functions capture the effects of experimental conditions. To assess these effects, parametric curves are often fitted to the data and comparisons are carried out by testing for equality of mean parameter estimates across conditions. This approach is parametric and, thus, vulnerable to violations of the implied assumptions. Furthermore, testing for equality of means of parameters may be misleading: Psychometric functions may vary meaningfully across conditions on an observer-by-observer basis with no effect on the mean values of the estimated parameters. Alternative approaches to assess equality of psychometric functions per se are thus needed. This paper compares three nonparametric tests that are applicable in all situations of interest: The existing generalized Mantel–Haenszel test, a generalization of the Berry–Mielke test that was developed here, and a split variant of the generalized Mantel–Haenszel test also developed here. Their statistical properties (accuracy and power) are studied via simulation and the results show that all tests are indistinguishable as to accuracy but they differ non-uniformly as to power. Empirical use of the tests is illustrated via analyses of published data sets and practical recommendations are given. The computer code in matlab and R to conduct these tests is available as Electronic Supplemental Material.     

Quality of life in breast cancer patients: Associations with optimism and social supportCalidad de vida en pacientes con cáncer de mama: asociación con optimismo y apoyo social

Background/Objective: The purpose of this study was to examine quality of life (QoL) in breast cancer patients from Colombia and to explore the relationship between QoL, habitual optimism, and social support. Method: A sample of 95 breast cancer patients treated in a hospital in Bogotá were administered the QoL instrument EORTC QLQ-C30 and the Life Orientation Test LOT-R. Additionally, they were asked to indicate from whom (physicians, friends, nurses, etc.) they wished and received social support. Reference data for the EORTC QLQ-C30 and the LOT-R were taken from a representative sample of the general Colombian population. Results: The breast cancer patients showed detriments to their QoL on most functioning scales and symptom scales of the EORTC QLQ-C30, while their general assessments of health and QoL were not worse than those of the controls. Optimism was positively correlated with QoL. Most patients wanted and received social support from their physicians and friends/family. Conclusions: The results suggest that optimism helps patients better cope with disease. A general assessment of global QoL cannot replace the more specific assessments of the functioning domains and symptoms.     

Examining Identity Styles and Religiosity Among Chilean Undergraduate Students

This study tested Berzsonky’s theory of identity styles and identity commitment in predicting religiosity. Participants were university students (N?=?320) from Chile who were surveyed with the ISI-3 and BRS-6 instruments to measure identity styles and religiosity. Path analysis was used to test the model, which suggested that the three identity styles all had direct effects on commitment. Commitment, in turn, had a direct effect on religiosity. Results revealed that normative, informational, and diffuse-avoidant styles had direct effects on identity commitment, with commitment having a direct effect on religiosity. Also, normative style was shown to have a direct effect on religiosity. Overall, results indicated that commitment is key in explaining religiosity from the perspective of Berzonsky’s theory.     

The Portuguese version of the Basic Empathy Scale (BES): Dimensionality and measurement invariance in a community adolescent sample

Empathy is the heightened ability to cognitively perceive and/or affectively share the emotions of others, which has been consistently associated with desirable social interactions. This paper aimed to test the bi-factorial structure of a Portuguese version of the Basic Empathy Scale and examine its variation by gender and age using a large community sample (n = 1029) of adolescents. The two-factor model, originally developed and supported by other cross-cultural validations, presented good fit indicators which was similar across genders and adolescent age groups. Girls were more empathic than boys and younger adolescents were more empathic than the older ones. Further support for the validity of the new scale comes from its relations to measures of social skills and aggression which were similar to theoretical predictions. In conclusion, the Portuguese version of the BES is a consistent and valid instrument for the assessment of empathy in samples of adolescents aged 12–18 years old in Portugal, which can now be used in cross-cultural studies of this important psychological construct.     

Testing the need for novelty as a candidate need in basic psychological needs theory

Motivation and Emotion - The purpose of this research was to test novelty as a candidate basic psychological need according to the inclusion criteria established within basic psychological needs...     

A qualitative analysis of emotional effector patterns and their feedback

This paper is devoted to the study of the relationship between the subjective component (feelings) and the behavioral aspect of emotions. The following emotions were studied: fear-anxiety, anger-aggression, joy-laughter, love-eroticism, love-tenderness, and sadness-tears. The observations were performed with three different groups of people: patients with anxiety neurosis, students under hypnosis, and drama students. Each emotion was characterized by a specific set of reactions in the respiratory pattern, heart activity, muscular activity, and facial expression. The feelings were correlated with the behavioral patterns and each time the behavioral patterns were interfered with a concomitant modification of the subjectivity component was observed. The direct performance of the behavioral emotional patterns in the absence of the emotogenic stimulus produced the feeling corresponding to the mimicked emotion. If the subjects were stimulated with an emotogenic stimulus during the direct performance of the behavioral patterns of another emotion, they confessed to have the feeling corresponding to the mimicked emotion, and not to the emotion belonging to the emotogenic stimulus. The role played by the feedback from the effector organs in the determination of the subjective emotional states is discussed.     

The efficacy of postdivorce intervention programs for children: A meta-analytical review

Preventive postdivorce interventions aim to help children cope with divorce and promote their adjustment. Nevertheless, questions remain regarding the concrete outcomes of these interventions and the intervention characteristics that influence them. This meta-analysis of 30 studies analyzes the efficacy of postdivorce interventions on children's symptomatology, personal resources, and adaptation to divorce. Likewise, it explores whether the intervention impacts the putative mediators from the family context and whether the characteristics of the studies themselves also influence the results. Using a data set of N = 4344 individuals, 258 effect sizes were calculated. Random effects analyses evidenced the impact of the interventions on specific variables instead of on children's global adjustment. There were no significant effects on children's mental health outcomes, and none of these effects were qualified by the moderators that were examined. Preventive postdivorce interventions had significant effects, specifically on children's divorce adjustment and self-esteem. The study of the moderators found that the interventions were generally homogeneous, and only one of the 20 moderators examined had a significant effect. Based on children's age, the interventions had an impact on family functioning only when they involved younger children, but this result should be interpreted with caution due to the small sample of studies. This meta-analysis provides evidence of the relevance of postdivorce interventions to critical variables as well as information about the role of the intervention characteristics in the effects and makes suggestions for future research on divorce interventions that encompass both practical and empirical developments.     

The Syzygy,Reformulation and New Perspectives: Dreams,Anima-Animus and Gender1

The main objective of this qualitative and quantitative research paper is to explore the occurrences and relations of the anima, animus and androgynous in dreams, with particular emphasis on the consideration of the androgynous in the human psyche. The sample consists of 9 series of dreams (141 dreams in total), from 9 dreamers, 7 women (female sex/gender) and 2 men (male sex/gender), aged 25–57, heterosexual, undergoing Jungian psychotherapy, and presenting couple-related themes. Statistical results and qualitative analysis offer new input for the re-vision of the classical anima-animus model, and the addition of in-depth explorations into the androgynous, paving the way for a new model of psychopathology and psychotherapeutic clinical work, in transition.     

The Motivational and Instantaneous Behavior Effects of Contexts: Steps Toward a Theory of Goal‐Directed Behavior1

Contextual conditions affect behavior in 2 ways: (a) They confront people with opportunities and obstacles that affect their motivation to take action; or (b) they instantaneously shape performance, regardless of a person's motivation and even without subjective acknowledgment of the conditions. Traditionally in psychology, the immediate behavioral consequences of a context are disregarded. Based on our theory of goal‐directed behavior, we are able to disentangle the instant and the motivational behavioral consequences of contexts. In an example study, 40% of the variation in performance among 660 Swiss and Spanish pupils was explained by motivational differences. Instantaneous constraints and facilitations imposed on people's acts, in turn, revealed a set of Switzerland‐ and Spain‐specific limitations and affordances (hit rate = 97.5%).