Measuring perceived stress in adolescents: a cross validation

A brief (24-item) version of the Adolescent Life Change Event Scale (ALCES), a self-report measure of stressfulness, was administered to 94 students between the ages of 12 and 29. Rank order coefficients computed between ratings obtained by the current sample and those obtained by the original sample exceeded .90. These results suggest ALCES may be a valid tool for use in stress research with adolescents.     

Ideals,oughts, and self-regulation: Are there qualitatively distinct self-guides?

Self-regulation, the ability to regulate one's emotions and behavior with respect to important goals, is an important function. While a number of different self-regulatory models exist, self-discrepancy theory (SDT: Higgins, 1987, 1989a, 1989b) is the only model which proposes that there are distinct self-guides, the ideal and the ought self. Discrepancies or congruencies between the actual self and each type of self-guide is proposed to result in unique emotional and behavioral consequences. Some recent research findings have failed to demonstrate these unique consequences, causing the proposed distinction between the self-guides to be questioned in the literature. This paper suggests that this conclusion is based on the assumption that these effects must occur in every case. We argue that SDT does not propose that unique relationships between discrepancies and either emotions or behavior always occur; rather, it specifies moderators of these relationships. A review of recent research examining the effects of these moderators highlights not only that, indeed, such moderating effects are found, but also in some cases the moderating effect is different for relationships between emotions and the two types of discrepancies. It is concluded that these two different types of evidence, namely, the existence of moderator variables and their differential effects on ideal and ought self-regulation, provide compelling support for the distinct nature of the ideal and the ought self-guides.     

Dual-Finger Preferred-Speed Tapping: Effects of Coordination Mode and Anatomical Finger and Limb Pairings

Interlimb and interfinger coordination were examined in a dual-finger tapping paradigm in which 16 subjects performed at preferred frequencies. Three bimanual finger combinations, in random order (2 index; 2 middle; and 1 index and 1 middle), were performed in in-phase and antiphase coordination modes, in addition to 1 unimanual combination (antiphase index-middle). Relative phase means were within 3&percent; accuracy for all conditions. A lower tapping frequency was found in all antiphase vs. in-phase conditions, accompanied by lower phasing variability and lower intrafinger consistency in the antiphase. When frequency was changed from the preferred rate, the 2 coordination modes became more alike in variability and, within the same frequency range, demonstrated no significant differences. The bimanual mixed-fingers tapping tended to have significantly lower phasing values (a small fixed point drift) and higher tapping frequencies than the symmetric conditions. The unimanual task was similar to all other antiphase conditions. Changes in preferred frequency with different coordination modes may be related to differing perceptual informational constraints. Current models addressing natural frequencies of coupled oscillators do not account for the present data.     

Food-related stimuli increase desire to eat in hungry and satiated human subjects

In the present study, the effect of food-related cues on the desire to eat chocolate in hungry and satiated subjects was investigated. Subjects (n=46) were randomly assigned to either a hungry or satiated group and then assigned to a group receiving one of the following stimuli: taste (2 M&Ms), sight (a photograph of M&Ms), cognition (a passage describin M&Ms), or control (no stimulus). In each testing session, subjects rated their desire to eat chocolate before and after the 90-s presentation of the particular stimulus. Each subject was then given a half pound of M&Ms so that actual consumption could also be measured. Results indicated that, following the presentation of the sight and taste stimuli, the subjects’ desire to eat chocolate was significantly increased. Furthermore, no differences in chocolate consumption due to state of hunger or type of food-related stimulus presented were found.     

Sources of auditory masking in infants: Distraction effects

Previous work has demonstrated that infants’ thresholds for a pure tone are elevated by a masker more than would be predicted from their critical bandwidths. The present studies explored the nature of this additional masking. In Experiment 1, detection thresholds of 6-month-old infants and of adults for a 1-kHz tone were estimated under three conditions: in quiet, in the presence of a 4- to 10-kHz bandpa] noise at 40 dB SPL, and in the presence of the same noise at 50 dB SPL. The noise was gated on at the beginning of each trial. Adult thresholds were the same in all three conditions, indicating that little or no sensory masking took place in the presence of the noise. Infant thresholds were about 10 dB higher in the presence of the noise. We term this effectdistraction masking. In Experiment 2, the effect of gating the noise on at trial onset was examined. Thresholds for the same tone were estimated in quiet and in the presence of the bandpass noise at 40 dB SPL, but the noise was presented continuously during the session. Under these conditions, distraction masking was still observed for infants. These findings suggest that a masker can have nonsensory effects on infants’ performance in a psychoacoustic task.     

Narcissism, Self-Esteem, and Defensive Self-Enhancement

This study investigates the relationships among narcissism, self-esteem, and defensive self-enhancement in samples of 60, 84, 300, and 57 subjects. Using various self-report indices of these constructs we found that (a) defensive self-enhancement is composed of two orthogonal components: grandiosity and social desirability; (b) grandiosity and social desirability independently predict self-esteem and may represent distinct confounds in the measurement of self-esteem, (c) narcissism is positively related to grandiose self-enhancement (as opposed to social desirability), (d) narcissism is positively associated with both defensive and nondefensive self-esteem, and (e) authority, self-sufficiency, and vanity are the narcissistic elements most indicative of nondefensive self-esteem. The results are consistent with several theories that postulate a two-component model for self-esteem regulation and personality development.     

Development of the use of word order in comprehension

Thirty-three children aged between 19 and 38 months were presented with six reversible active and six reversible passive sentences and were required to act them out. For each child, mean length of utterance was calculated from a sample of spontaneous speech. Mean length of utterance was a more consistent predictor of performance than chronological age. Seven children with a mean length of utterance between 1.0 and 1.5 morphemes per utterance were unable to use the word order information in either type of sentence for comprehension. More developed children could comprehend reversible active sentences but not reversible passives. Children with a mean length of utterance between 3.0 and 3.5 morphemes per utterance systematically reversed the meaning of the reversible passives. The results are discussed in relation to previous studies of word order comprehension and studies of word order in production.This research was supported in part by PHS grant HD-02908 from the National Institute of Child Health and Development. Roger Brown is the principal investigator.     

Attentional strategies for studying scientific texts

Content-area novices develop rules as to what types of information (e.g., definitions, facts, equations) are important in texts (Dee-Lucas & Larkin, 1988). The study reported here indicates that these rules influence text learning. Experts and novices read and recalled science texts. Reading times and recall for different types of content were compared for the two groups. Results indicate that novices’ importance rules function as part of novices’ control schema during reading, influencing their attentional processes and the resulting representation formed for the text. This was evident in qualitative differences between experts and novices in their attentional patterns and text recall. The study also found that the number of passage readings and the passage topic have a greater influence on the reading times of exports, but both groups adjust processing time according to the hierarchical level of the passage content. The findings are discussed in terms of their implications for novices learning from texts.     

Children's comprehension of relative clauses

A review of the literature on children's use of relative clause constructions reveals many contradictory findings. The suggestion is that some studies fail to take into account the two factors of embeddedness (role of complex noun phrase within the sentence) and focus (role of head noun in the relative clause). The experiment reported here attempted to reconcile the disparate findings and extend the range of constructions examined. 114 children between the ages of 3 and 7 served as subjects in a test of comprehension using an act-out procedure of 9 different relative clause sentences that exhaust the possible combination of 3 roles of the complex noun phrase in the sentence and 3 roles that the head noun plays within the relative clause (in each case, subject, driect object, and indirect object). All constructions were understood better with increasing age of the children sex and sentence set were nonsignificant variables. The results reveal a difficulty in ordering of the 9 types of construction that is in keeping with a prediction based on surface structure processing strategies.This research was supported by grant No. BNS73-09150 from the National Science Foundation to Professor Roger Brown.     

Sex differences in comments made during conflict within close heterosexual pairs

Questionnaires were used to investigate (1) stereotypes about what young couples do and say during their conflicts and (2) reports (by actual young couples) of what each one is likely to do or say. The two sets of data yielded much the same pattern of results. The female is expected and reported to cry and sulk and to criticize the male for lack of consideration of her feelings and for insensitivity to his effect on her. The male is expected and reported to show anger, to reject the female's tears, to call for a logical and less emotional approach to the problem, and to give reasons for delaying the discussion. The Study I expectations for sex differences during conflict are held to about the same degree by the female and male respondents. In both studies, the differences were found to depend primarily on sex of the person and not on the particular problem involved in the conflict. The results are interpreted in terms of the interaction between a conflict-avoidant person (the male) and his partner (the female), who is frustrated by the avoidance and asks that the problem and the feelings associated with it be confronted.