Adults' perception of children's height and reaching capability

This study investigated the influence of some characteristics of the task, the model, and the observer, in the estimation errors of adults while judging children's affordances. One hundred and eighteen adults, divided in 4 height groups, estimated height and vertical reaching capability of 3 girls (3.55-, 4.74- and 7.06-years old), in the presence and in the absence of the model. Constant errors (CE) (estimation-real value), absolute percent errors (APE) (|1 − estimation/real value| × 100), and error tendency (underestimations, right judgments, or overestimations) were calculated. A model and a condition effect were verified on APE. APE for the younger model were greater than for the other models (p < 0.001), and APE in the absence of the model were greater than in her presence (p < 0.05). Generally, adults underestimated height (51.8% of underestimations vs. 32.3% of overestimations) and overestimated reachability (51.3% of overestimations vs. 37.7% of underestimations). The overestimation of reachability was more notorious for the younger model, which might reflect adults' difficulty to consider the specificity of younger children's body proportions. Actually, the overestimation bias may suggest that adults perceive young children as on the basis of adult's geometrical proportions.     

Memory for surface features of unfamiliar melodies: independent effects of changes in pitch and tempo

A melody’s identity is determined by relations between consecutive tones in terms of pitch and duration, whereas surface features (i.e., pitch level or key, tempo, and timbre) are irrelevant. Although surface features of highly familiar recordings are encoded into memory, little is known about listeners’ mental representations of melodies heard once or twice. It is also unknown whether musical pitch is represented additively or interactively with temporal information. In two experiments, listeners heard unfamiliar melodies twice in an initial exposure phase. In a subsequent test phase, they heard the same (old) melodies interspersed with new melodies. Some of the old melodies were shifted in key, tempo, or key and tempo. Listeners’ task was to rate how well they recognized each melody from the exposure phase while ignoring changes in key and tempo. Recognition ratings were higher for old melodies that stayed the same compared to those that were shifted in key or tempo, and detrimental effects of key and tempo changes were additive in between-subjects (Experiment 1) and within-subjects (Experiment 2) designs. The results confirm that surface features are remembered for melodies heard only twice. They also imply that key and tempo are processed and stored independently.     

How do Lithuanian adolescents address identity questions? A four-wave longitudinal study on change and stability in identity styles

Abstract

The present investigation evaluated multiple patterns of change and stability in Berzonsky’s identity styles (informational, normative, and diffuse-avoidant) in a four-annual-wave longitudinal study with 468 adolescent boys and girls from Lithuania. A combination of mean level changes, high rank-order stability, and high profile stability has been found in this study. First, levels of informational and normative identity styles remained stable for girls, but decreased significantly for boys; levels of diffuse-avoidant identity styles remained stable for girls and boys. Second, the rank-order stability of the normative and diffuse-avoidant styles was lower for boys, than for girls. Third, the mean profile stability was high for girls and moderate for boys. In general, our findings highlighted substantial gender differences in multiple indices of change and stability of identity styles.     

Arousal, Mood, and the Mozart Effect

The "Mozart effect" refers to claims that people perform better on tests of spatial abilities after listening to music composed by Mozart. We examined whether the Mozart effect is a consequence of between-condition differences in arousal and mood. Participants completed a test of spatial abilities after listening to music or sitting in silence. The music was a Mozart sonata (a pleasant and energetic piece) for some participants and an Albinoni adagio (a slow, sad piece) for others. We also measured enjoyment, arousal, and mood. Performance on the spatial task was better following the music than the silence condition, but only for participants who heard Mozart. The two music selections also induced differential responding on the enjoyment, arousal, and mood measures. Moreover, when such differences were held constant by statistical means, the Mozart effect disappeared. These findings provide compelling evidence that the Mozart effect is an artifact of arousal and mood.     

Human and Global Identities: Different Prototypical Meanings of All-Inclusive Identities

The impact of identities encompassing all human beings (e.g., human and/or global identities) on intergroup relations is complex, with studies showing mostly positive (e.g., less dehumanization), but also negative (e.g., deflected responsibility for harm behavior), effects. However, different labels and measures have been used to examine the effects of these all-inclusive superordinate identities, without a systematic empirical examination of the extent to which they overlap or differ in their sociopsychological prototypical content. This study examined whether different labels activate the same contents in laypeople's conceptualization. Two hundred and forty-eight participants openly described one of six labels: “All humans everywhere”; “People all over the world”; “People from different countries around the world”; “Global citizens”; “Citizens of the world”; and “Members of world community.” Results from quantitative content analyses showed that the different labels activated different thematic attributes, representing differences in their core prototypical meaning. We propose that a general distinction should be made between labels that define membership based on human attributes (e.g., biological attributes) and those that evoke attributes characteristic of membership in a global political community (e.g., attitudinal attributes), as their effect on intergroup relations may vary accordingly.     

The SF-36 Among Cambodian and Vietnamese Refugees: An Examination of Psychometric Properties

Among traumatized Cambodian (N=90) and Vietnamese (N=94) refugees attending a psychiatric clinic, the study examined the validity and psychometric properties of the Short Form-36 Health Survey (SF-36), a measure of self-perceived mental and physical health. In both patient samples, all eight SF-36 scales displayed excellent internal consistency (item-scale correlations and Cronbach's α). But, similar to other studies of Asian samples, (a) the Vitality (VT) scale did not separate from the Mental Health (MH) and General Health (GH) scales, as evidenced by item-scale and interscale correlations, and (b) the VT scale loaded as strongly (Vietnamese sample) or more strongly (Cambodian sample) than the MH scale on the so-called Mental Factor in a two-factor solution of the eight scales (with the GH scale also loading heavily on the same factor).