Risky drinking in college changes as fraternity/sorority affiliation changes: A person-environment perspective.

This study aimed to resolve the direction of the relation between Greek affiliation and substance use by taking advantage of the quasi-experimental nature of change in college fraternity/sorority affiliation. Precollege individual differences and college substance use were examined as a function of time-varying Greek status to characterize self-selection (by which heavy substance users opt into Greek systems) and socialization (by which Greek systems foster heavy substance use). Prospective data on continuously enrolled college students (N=2,376), assessed at precollege and in the first 6 semesters of college, were used. Latent class analysis indicated 4 discrete groups of status: constant Greek members (30%), constant nonmembers (64%), late joiners (2%), and droppers (4%). Random coefficient models demonstrated disaffiliation with Greek systems is associated with decreases in risky drinking and alcohol-conducive environmental factors (peer norms and alcohol availability), whereas affiliation is associated with increases, indicating Greek socialization via sociocognitive and physical environments. Future Greeks differed from nonmembers in diverse individual characteristics and heavier substance use at precollege, suggesting multiple selection paths into Greek systems. Findings suggest a reciprocal relation between Greek environment and individuals in determining the trajectories of college drinking and heterogeneity in drinking as functions of changes in Greek affiliation. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Dual mechanisms underlying accentuation of risky drinking via fraternity/sorority affiliation: The role of personality, peer norms, and alcohol availability.

Heavy drinkers prior to college have been shown to increase their drinking in college via their self-selection into the Greek societies and subsequent Greek influence on their drinking. This study characterized the dual mechanisms underlying these processes: (a) the Greek selection on the basis of personality and precollege drinking and (b) the Greek influence through alcohol-conducive environmental factors. Prospective data obtained in the summer prior to college and over the first 6 semesters of college (N = 3,099) indicated strong precollege drinking-based selection, strong initial influence immediately after college entrance, and sustained influence afterward. Impulsivity/novelty seeking was associated with Greek affiliation both directly and indirectly via precollege drinking, whereas extraversion and neuroticism were associated with Greek affiliation largely independent of precollege drinking. Greek affiliation was related to higher levels of drinking norms immediately after college entrance and alcohol availability by the sophomore year, but not afterward, after controlling for prior drinking. Findings highlight the diverse mechanisms underlying accentuation of risky drinking over the transition to college and during the college years, through dynamic interplay between individuals and high-risk environments. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Short- and long-term effects of repetitive mother–infant separations on social development in rhesus monkeys.

Rhesus monkey mother–infant dyads were each subjected to 16 4-day physical separations between the infants' 3rd and 9th mo of life. Infants displayed protest behavior following each separation but only minimal signs of despair. Their protest diminished somewhat over repeated separations. The mothers' separation reactions were considerably milder (and changed little) over repeated separations. The separations appeared to retard the development of normal mother–infant relationsips: Relative to nonseparated control dyads, separated infants displayed excessive levels of infantile behaviors, although their mothers did not differ from control mothers in levels of any behavior. Near the end of their 1st yr, all infants were permanently separated from their mothers and housed as peer groups. Over the next 30 wks during peer housing, few behavioral differences emerged between previously separated and control Ss. However, when exposed to their mothers during preference tests, previously separated Ss seemed to avoid their mothers in sharp contrast to the mother-seeking activity displayed by control infants. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Short- and long-term effects of ovulation induction

Ovulation induction using clomiphene citrate, gonadotropins, and gonadotropin-releasing hormone is reviewed. The short- and long-term consequences of these therapies are discussed in detail.     

Short- and long-term memory retrieval: A comparison of the effects of information load and relatedness.

The separate applications of the Sternberg and fact-retrieval paradigms promote a view that short- and long-term memory are functionally distinct. However, effects of information load and relatedness, observed in both paradigms, support a more unified approach to memory retrieval. The two experiments of this article allow for direct comparison of these effects as observed in a fact-retrieval task, a Sternberg task, and a hybrid precuing task. These experiments are motivated by an associative approach in which performance in all tasks is seen to depend upon a parallel search driven by spreading activation. Decision-time data are explained in an indirect-pathway model with two important features: (a) Pretrial activation levels of areas in memory can vary to reflect differences between short-term and long-term retrieval; and (b) for related material, decisions can be based upon indirect pathways that connect the elements of a test probe through preexperimental associations in memory. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Daily work–family conflict and alcohol use: Testing the cross-level moderation effects of peer drinking norms and social support.

In the current study, we conducted daily telephone interviews with a sample of Chinese workers (N = 57) for 5 weeks to examine relationships between daily work–family conflict and alcohol use. Drawn from the tension reduction theory and the stressor–vulnerability model, daily work–family conflict variables were hypothesized to predict employees’ daily alcohol use. Further, social variables (i.e., peer drinking norms, family support, and coworker support) were hypothesized to moderate the relationship between work–family conflict and alcohol use. Results showed that daily work-to-family conflict but not family-to-work conflict had a significant within-subject main effect on daily alcohol use. In addition, there was significant between-subject variation in the relationship between work-to-family conflict and alcohol use, which was predicted by peer drinking norms, coworker support, and family support. The current findings shed light on the daily health behavior consequences of work–family conflict and provide important theoretical and practical implications. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Moral norms and social conventions: A cross-cultural comparison.

60 boys and 60 girls in the 1st and 4th grades in Israel were interviewed to examine the distinction between moral and conventional norms. Ss were equally divided between 3 groups: secular urban Jews, secular kibbutz Jews, and traditional Arab villagers. Ss were presented with 8 behaviors, all breaches of moral or conventional norms. Two of them dealt with norms strongly observed by the traditional but not by the other groups and 2 with norms central to the kibbutz. Ss were asked the extent to which the behavior was bad (or good) in a country where (a) it was prohibited and (b) it was permitted. They were also asked whether it should be forbidden by law, and why. City and kibbutz Ss did not differ in their judgments, even in regard to behaviors emphasized in the kibbutz. Compared with these groups, the traditional group judged all behaviors as bad even when permitted; they thought all should be prohibited by law and their justifications tended to be in normative terms. Results are interpreted in terms of 2 distinct orientations to social norms: one where the criteria for social judgment of behaviors and norms are consequences to others and law, and the other where social norms are considered to have absolute validity and constitute the dominant criterion for moral judgment. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Intergroup norms and intergroup discrimination: Distinctive self-categorization and social identity effects.

Manipulation of in-group and out-group norms of discrimination and fairness allowed for the operation of competing social identity principles concerning in-group bias, conformity, and group distinctiveness. The combined effects of these principles on in-group bias were first examined in a modified minimal-group setting (Study 1). Results demonstrated that participants' allocation strategies were in accord with the in-group norm. Furthermore, dissimilar norms resulted in greater use of positive differentiation allocation strategies. However, in natural groups (Study 2), more in-group bias was found when both group norms were similar and discriminatory. The results confirm the importance of in-group norms and demonstrate differences between experimental and natural groups in the applicability of competing social identity and self-categorization principles. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

The effects of social category norms and stereotypes on explanations for intergroup differences.

A 2-stage model of the construction of explanations for differences between groups is presented. Category norms affect which of 2 groups becomes "the effect to be explained," and stereotypes shape attributions about that group. In 3 experiments, 288 participants wrote explanations for differences between gay and straight men. Explanations focused on gay men who were also judged to have more mutable attributes. However, these effects were not correlated. Participants focused explanations on straight men when explicitly instructed to do so (Experiment 1). Explanations focused on both groups equally when the gay men constituted the numerically larger sample, when gay men were more typical of the overarching category (i.e., people with AMS) than straight men, or when more straight men were described as performing the behavior (Experiment 2). Stereotype-consistent information prompted more essentialist references and fewer reconstructive references to gay men than did stereotype-inconsistent information (Experiment 3). The relevance of this model for theories of norms, stereotypes, and for the conduct of social science is discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Fraternity and sorority involvement, social influences, and alcohol use among college students: A prospective examination.

This study used latent growth curve modeling to investigate whether the effects of gender and Greek involvement on alcohol use and problems over the first 2 years of college are best characterized by selection, socialization, or reciprocal influence processes. Three social influences (alcohol offers, social modeling, and perceived norms) were examined as potential mediators of these effects. Undergraduate participants (N = 388) completed self-report measures prior to enrollment and in the spring of their freshmen and sophomore years. Male gender and involvement in the Greek system were associated with greater alcohol use and problems prior to college. Both gender and Greek involvement significantly predicted increases in alcohol use and problems over the first 2 years of college. Cross-domain analyses provided strong support for a mediational role of each of the social influence constructs on alcohol use and problems prior to matriculation, and prematriculation social modeling and alcohol offers mediated relations between Greek involvement and changes in alcohol use over time. Findings suggest that students, particularly men, who affiliate with Greek organizations constitute an at-risk group prior to entering college, suggesting the need for selected interventions with this population, which should take place before or during the pledging process. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Multiple personality: A social psychological perspective.

48 undergraduates were randomly assigned to 1 of 3 interview treatments that varied in the extent to which they provided cues for manifesting multiple personality and were instructed to play the role of an accused murderer throughout the interview. The most explicit treatment (Bianchi treatment) included a role-played hypnotic interview that was used in diagnosing a suspect in the "Hillside strangler" rape–murder cases as suffering from multiple personality. A less explicit hypnotic treatment and a nonhypnotic treatment were administered to the remaining role players. Most Ss in the Bianchi treatment displayed the major signs of multiple personality (e.g., adoption of a different name, spontaneous "posthypnotic" amnesia). In a later session, Ss who role played as multiple personalities performed differently on psychological tests administered separately to each role-played identity. Those who failed to enact the multiple personality role performed similarly when tested twice. Findings are discussed in terms of a social psychological formulation that emphasizes the roles of active cognizing, contextual cuing, and social legitimation in the genesis of multiple personality. (54 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Family history and antisocial traits moderate naltrexone's effects on heavy drinking in alcoholics.

Naltrexone's (NAL) effects on alcohol consumption are generally modest, so identifying patients likely to benefit would improve treatment utility. Several studies indicate that potentially significant moderators of NAL's effects might include family history of alcohol problems (FH), age of onset of alcohol problems, degree of antisocial traits, and comorbid drug use. Data from 128 alcoholic patients enrolled in a 12-week NAL treatment study (50 mg/day) were reanalyzed to determine the role of FH, age of onset, antisocial traits, and comorbid drug use in NAL's treatment effects on heavy drinking days. Dichotomized FH, age of onset of alcohol problems, and comorbid cocaine or marijuana use had no interaction effect with medication. Percentage of relatives with problem drinking (family history percentage [FHP]) moderated the effects of NAL on drinking such that NAL resulted in lower drinking rates only for patients with higher FHP. Antisocial traits also moderated the effects of medication on drinking for patients compliant with =70% of medication. Patients with more antisocial traits had less heavy drinking on NAL than on placebo, whereas patients low on antisocial traits had no benefit from NAL. Covarying antisociality in regressions of drinking outcome on FHP showed that the effects of FHP were not attributable to antisociality. Thus, NAL may selectively benefit alcoholics with antisocial traits or 20% or more relatives with problem drinking. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Illusion and well-being: A social psychological perspective on mental health.

Many prominent theorists have argued that accurate perceptions of the self, the world, and the future are essential for mental health. Yet considerable research evidence suggests that overly positive self-evaluations, exaggerated perceptions of control or mastery, and unrealistic optimism are characteristic of normal human thought. Moreover, these illusions appear to promote other criteria of mental health, including the ability to care about others, the ability to be happy or contented, and the ability to engage in productive and creative work. These strategies may succeed, in large part, because both the social world and cognitive-processing mechanisms impose filters on incoming information that distort it in a positive direction; negative information may be isolated and represented in as unthreatening a manner as possible. These positive illusions may be especially useful when an individual receives negative feedback or is otherwise threatened and may be especially adaptive under these circumstances. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Emotional adjustment of psychiatric patients following their unexpected discharge due to war: Short- and long-term effects.

Reports that at 1-mo follow-up none of the ex-patients had been rehospitalized; at 10-mo follow-up 4 had been rehospitalized, and 28% of the 30 Ss were receiving chemotherapy. Ratings at both follow-ups suggested mild to moderate emotional stress. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Short- and long-term effects of the pyrethroid insecticide fenvalerate on an invertebrate pond community

Submicroscopic gold particle suspensions scatter colored light when illuminated with white light, and we have observed that a light-scattering gold particle suspension has the same appearance as a fluorescing solution. Thus, when illuminated by a narrow beam of white light, a 40-nm gold sol displays a clear (not cloudy), green scattered light (Tyndall) beam and has the same appearance as a fluorescing fluorescein solution. These, as well as other, observations have suggested to us that, in general, light-scattering particles can be treated as fluorescent analogs and used as fluorescent analog tracers in immuno- and DNA probe assays as well as in cell and molecular biology studies. Light-scattering particles are advantageous in these applications because particles such as gold and silver have very high light-scattering powers, which allows these particles to be easily detected, by light-scattering, at particle concentrations as low as 10(-16) M. The scattered light can be detected by the unaided eye for qualitative measurements or with a simple light-sensitive detector for quantitative measurements. Moreover, individual particles can be easily detected by eye or a video camera using a simple light microscope with a proper illuminating system. In addition, submicroscopic particles which scatter blue, green, yellow, orange, or red light can be readily synthesized. Antibodies, DNA probes, and other tracer substances can be readily attached to gold and other particles without altering their light-scattering properties. In this article we present the theory which allows one to predict the light-scattering properties of particles of different sizes and compositions and identify those particle sizes and compositions which appear most adequate for particular applications. Furthermore, we calculate molar extinction coefficients and emission efficiencies for particles of different sizes and compositions which allows us to compare the light-producing powers of these particles with those of well known fluorescent tracers. A 60-nm gold particle, for example, is equivalent to about 3 x 10(5) fluorescein molecules. Very simple, easy to use, low-cost, ultrasensitive immuno- and DNA probe assays can be developed using light-scattering particles as fluorescent analog tracers. Single particles can be detected on cell surfaces and inside cells using light microscopy techniques with proper illumination as described in the article. At high particle densities, particle-labeled cells have the same appearance as fluorescent cells.     

Harassing under the influence: The prevalence of male heavy drinking, the embeddedness of permissive workplace drinking norms, and the gender harassment of female coworkers.

Drawing from the literature linking alcohol consumption and aggressive behavior, the authors examine the degree to which the risk of gender harassment toward female workers may be associated with the drinking behaviors and perceived workplace drinking norms of their male coworkers. Using multilevel analyses to examine data from 1,301 workers (including 262 women employed in 58 work units in the manufacturing, service and construction sectors), our findings indicate that, even when controlling for a variety of other demographic and unit-level factors, there is a significant association between the proportion of males in a work unit identified as being heavy or "at-risk" drinkers and the probability of gender harassment toward unit females. Our findings further indicate that this association is amplified as a function of the embeddedness of permissive workplace drinking norms among males' referent others. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Reasons for abstaining or limiting drinking: A developmental perspective.

The cross-sectional and longitudinal relations between reasons for abstaining or limiting drinking (RALD) and abstention were examined in a 16-year longitudinal study (N = 489) of college students with and without a family history of alcohol problems. Results indicated that RALD based upon upbringing or religiosity were associated with increased rates of abstention, whereas RALD based upon perceived or experienced negative consequences of drinking were associated with lower rates of abstention and increased alcohol consumption among drinkers. In addition, changes in RALD over time coincided with alcohol consumption transitions. Abstainers who began drinking after turning 21 reported a decrease in the importance of RALD associated with loss of control and upbringing or religiosity compared to abstainers who continued to abstain after turning 21. Conversely, drinkers who began abstaining after leaving college reported an increase in the importance of RALD associated with loss of control and upbringing or religiosity compared to drinkers who continued to drink after leaving college. Examining the reciprocal influences of RALD on drinking outcomes extends previous research and may inform prevention and intervention programs among college drinkers. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Multicultural organizational consultation: A social justice perspective.

Multicultural organizational consultation (MOC) possesses a strong social justice component because it is directed toward removing barriers to equal access and opportunity in organizations. As such, it often challenges the power and privilege of organizational policies and practices that oppress marginalized groups and perpetuate disparities. Four important characteristics of MOC are discussed: (a) the need for a conceptual framework of multicultural organizational development, especially how standard operating procedures (programs, policies, and practices) may enhance or impede diversity initiatives; (b) confronting the sociopolitical systems of power and privilege inherent in organizations; (c) the consultant's ability to understand his or her own worldview in relation to other diverse worldviews related to race, gender, sexual orientation, and other sociodemographic dimensions; and (e) integrating roles and tasks in facilitating difficult dialogues on race, gender, and sexual orientation. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Dimensions and types of social status: A cross-age perspective.

In Exp I, peer perceptual correlates of social preference (SP) and social impact (SI) were investigated with 311 3rd, 5th, and 8th graders. SP was highly positively related to cooperativeness, supportiveness, and physical attractiveness and negatively related to disruptiveness and aggression. SI was related to active, salient behaviors of both positive and negative valence. Whereas the correlates were found to be similar at each grade level, greater proportions of the variance in these dimensions could be predicted at younger than older ages. In Exp II, these dimensions were used to assign 531 Ss to 5 sociometric status groups: popular, rejected, neglected, controversial, and average. Peer perceptions of the behavioral correlates of these groups were solicited and found to reveal distinct profiles. A previously unidentified group of controversial children was perceived as disruptive and aggressive (like the rejected group), but also as social leaders (like popular Ss). It is suggested that researchers consider controversial children as a distinct group in future behavioral and epidemiological studies. (32 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)