Peer influence on risk taking, risk preference, and risky decision making in adolescence and adulthood: an experimental study

In this study, 306 individuals in 3 age groups--adolescents (13-16), youths (18-22), and adults (24 and older)--completed 2 questionnaire measures assessing risk preference and risky decision making, and 1 behavioral task measuring risk taking. Participants in each age group were randomly assigned to complete the measures either alone or with 2 same-aged peers. Analyses indicated that (a) risk taking and risky decision making decreased with age; (b) participants took more risks, focused more on the benefits than the costs of risky behavior, and made riskier decisions when in peer groups than alone; and (c) peer effects on risk taking and risky decision making were stronger among adolescents and youths than adults. These findings support the idea that adolescents are more inclined toward risky behavior and risky decision making than are adults and that peer influence plays an important role in explaining risky behavior during adolescence.     

Limited effects of pre‐existing maternal antisocial behaviours on infant neurodevelopment: A pilot study

Antisocial behaviour disorders (ABDs) are among the most costly and treatment resistant of all psychiatric syndromes. Select neurodevelopmental abnormalities have been labelled a risk factor for ABDs, but it is unknown if maternal ABDs are associated with early neurodevelopmental abnormalities. This study tested whether infants of ABD mothers had more neurodevelopmental abnormalities than mothers with no psychiatric disorder (ND). Thirty‐nine pregnant women (49% with ABDs; 51% no psychiatric disorder) were recruited from the community. Infant neurodevelopment was assessed at ≤1 and 8 weeks using the Neonatal Behavioural Assessment Scale and at 16 weeks of age using the Bayley Scales of Infant and Toddler Development‐III. There was no significant group difference at ≤8 weeks. At 16 weeks, ABD mothers rated their infants higher on the Adapted Behaviours subscale, specifically on the leisure and self‐directed scales, when corrected for substance use and socio‐economic status. This pilot study found higher maternal ratings of Adapted Behaviours at 16 weeks, which may be due to unrealistic expectations about infant development.

Highlights

• Maternal Antisocial behaviour disorders (ABDs) do not impact early infant neurodevelopment at ≤ 8 weeks old as measured by standardized assessment.
• Mothers with ABDs view their infants at 16 weeks as better adapted than women without any psychiatric disorder.
• Specifically, mothers with ABDs reported their infants as better adapted on the leisure and self‐direction subscales of the Bayley Scales of Infant and Toddler Development‐III. This finding may be due to less knowledge about normal infant adaptive behavior.

     

Organization-based self-esteem and well-being: empirical examination of a spillover effect

Global self-esteem is believed to be a major determinant of both subjective and eudaimonic (psychological) well-being (Diener, E. (1984). Subjective well-being. Psychological Bulletin, 95, 542–575. doi:10.1037/0033-2909.95.3.542; Ryff, C. D. (1989). Happiness is everything, or is it? Explorations on the meaning of psychological well-being. Journal of Personality and Social Psychology, 57, 1069–1081. doi:10.1037/0022-3514.57.6.1069). This relationship is termed a spillover effect because it is believed that self-esteem “spills over” onto general well-being. In light of the dominant role that work plays in the lives of many people, we asked whether there is also a spillover effect of self-esteem formed around one’s work and organizational experiences (viz., organization-based self-esteem) on general well-being. Building from disposition theory we posited a positive relationship between organization-based self-esteem and well-being. Drawing upon evidence from two field studies, involving focal participant and co-worker reports, we present evidence in support of the hypothesized relationships. In addition, we observe evidence suggesting that work engagement may play a role by influencing the extent to which this spillover effect might occur. Implications of this research are discussed.     

Seeing how it’s done: matching conditions for observer rats (Rattus norvegicus) in the bidirectional control

In an attempt to increase the reliability of the demonstrator-consistent responding effect produced in the bidirectional control procedure, experiments 1–4 sought conditions that would magnify the matching effect. The aim was to produce a robust demonstrator-consistent responding effect in order that future analytic experiments could investigate the psychological processes responsible for this effect. The joystick responses of observer rats trained using the standard bidirectional control procedure parameters were compared with those of observers subject to conditions identified in the social learning literature as favourable for imitation. Unlike mice, observer rats in experiments 1 a and 1 b tended to push a joystick in the same direction as their demonstrators when the demonstrators were either familiar or unfamiliar males and females. Comparable demonstrator-consistent responding occurred following observation of a standard and a salient joystick response (experiment 2). Experiment 3 showed that the discriminative accuracy of a demonstrator’s responding was important for matching behaviour, and suggested that matching might be enhanced with more than the conventional single observation session. Experiment 4 confirmed that the bidirectional control effect is sensitive to the amount of observational experience; after six observation sessions, demonstrator-inconsistent responding occurs. The results of experiments 1–3 are, and those of experiment 4 are not, compatible with the hypothesis that demonstrator-consistent responding in the bidirectional control is caused by olfactory cues deposited by demonstrators on the joystick. Received: 29 May 2000 / Accepted after revision: 28 August 2000     

Negative transfer errors in sequential cognitive skills: strong-but-wrong sequence application

Three experiments investigated the role of processing sequence knowledge in negative transfer within multistep cognitive skills. In Experiments 1 and 2, more training resulted in higher error rates when new processing sequences that resembled familiar ones were introduced in transfer. Transfer error responses were executed with the same speed as correct responses to familiar sequence trials, and the errors appeared to be undetected by the performers. Experiment 3 tested whether the effects of sequence learning were attributable to explicit or implicit knowledge of processing sequences. Evidence favored the implicit learning interpretation. Findings are discussed in relationship to earlier demonstrations of the einstellung effect and to current taxonomic theories of human error.     

Classical conditioning of pupillary constriction

Previous attempts to condition classically the pupillary response have resulted in mixed outcome. Studies using light as the UCS have generally been unsuccessful while those studies using shock as the UCS have been more successful. In the present study six subjects were visually presented 15 CVC trigrams while their pupil sizes were monitored. Five of the CVCs had been previously presented, five had been previously presented while paired with shock, and five had not been previously presented. Analysis indicated that more pupillary constriction occurred to the five CVCs paired with shock than those presented without shock or those not previously presented. The resulting classically conditioned pupillary constriction is discussed in terms of the development of meaning through classical conditioning.     

Effects of maternal employment on sex role orientation of adolescents

Sex role orientation was determined for 352 high school seniors in Plano, Texas. Using maternal employment status as the independent variable, students were divided into groups according to full-time employed mothers or full-time homemaker mothers. Results of the three-part instrument indicated that adolescents of employed mothers had a more liberal sex role orientation and attitude toward division of household tasks than adolescents of homemaker mothers. Mean scores from two sections of the instrument indicated nontraditional attitudes. Results indicated that maternal happiness with employment did not affect male and female sex role orientation.     

Factors Predisposing Women to Take Precautions Against Breast and Cervix Cancer

The utility of the Theory of Reasoned Action (TRA), the Health Belief Model (HBM), and the Subjective Probability Model (SPM) in a health education diagnosis to discover predisposing factors for performing breast self-examination (BSE) and having a Pap test was explored in a survey of 123 women. Each model was a significant predictor of BSE and Pap test intentions. However, a composite model comprising the TRA's attitudinal and normative components supplemented by the barriers component of the HBM was the most useful in performing a health education diagnosis in relation to breast self-examination and the Pap test. "Psychological relevance" scores of particular beliefs obtained by SPM procedures tended to confirm the TRA's correlational method of identifying primary beliefs that would be the targets of persuasion to change BSE and Pap test intentions.