Behavioral similarity,confederate strategy,and sex composition of dyad as determinants of interpersonal judgments and behavior in the prisoner's dilemma game

The study was designed to test three distinct theoretical models relating player's attitudes toward a confederate in the prisoner's dilemma game: a reinforcing outcome model, a cultural norm model, and a social comparison model. A secondary concern of the study was to determine if player's sex, confederate's sex, and the confederate's strategy interactively influence player's choice behavior. Forty-eight male and forty-eight female subjects played 100 trials of the prisoner's dilemma game with a confederate who played either a 74% cooperative or 74% competitive predetermined strategy and then filled out the Interpersonal Judgment Scale rating the confederate. Behaviorally similar confederates received more positive evaluations than dissimilar confederates supporting the social comparison hypothesis. Further, the strategy of the confederate did not influence choice behavior in mixed-sex dyads, suggesting that sex roles may inhibit behaviorally based male-female interaction. The generality of previous gaming research which has dealt almost exclusively with same-sex dyads is called into question.     

Hemispheric differences for verbal and nonverbal stimuli in Japanese- and English-speaking subjects assessed by Tsunoda's method

This investigation compared the performance of Japanese- and English-speaking subjects on T. Tsunoda's DAF key-tapping task, which he purports assesses cerebral dominance for language (1975, Brain and Language, 2, 152–170). Twenty-three native speakers of Japanese and 23 English-speaking subjects were employed in this study. Each subject was administered the DAF key-tapping task utilizing the vowel /a/ and a 1000-Hz pure tone. The results revealed an effect of intensity, whereby an increase in DAF/SAF ratios resulted in an increase in performance disruption. No differences were observed between the two language groups, ears, or between the 1000-Hz pure tone and the vowel /a/. Only 15.5% of the subjects showed the hypothesized right ear advantage for the tone when subjected to an analysis similar to Tsunoda's. All other subjects revealed variable degrees of advantage to either ear, to the same ear, or to to neither ear. It was concluded that no significant functional auditory asymmetry was observed for either group, suggesting that the DAF key-tapping task may not be a sensitive procedure to determine cerebral dominance for language among normals.     

Electroencephalographic and dichotic indices of cerebral laterality in stutterers

To test the hypothesis that stuttering is the product of faulty cerebral laterality four experiments were performed on each of five adult stutterers and five fluent speakers. These tests were: (1) dichotic listening with consonant-vowel pairs, (2) alpha recording over both hemispheres during the performance of cognitive tasks intended to engage preferentially the left or right hemispheres, (3) contingent negative variation with either an articulatory or bilaterally symmetrical response, and (4) readiness potential with the same responses. The results fail to disconfirm the null hypothesis regarding stutterers and their fluent peers. All subjects showed consistent patterns of cerebral laterality indicative of localization of speech function in the left hemisphere. Suggestions are made regarding a possible contribution of deficient sensorimotor integration in stuttering.     

Differential methods of causal attributions for strangers vs acquaintances

Previous research has demonstrated that people are more likely to attribute a stranger's behavior to external causes if that behavior is common in a given population than if it is relatively unique (the consensus rule). It was proposed in the present paper that another and perhaps simpler rule is available for causal attributions for an acquaintance's behavior, such that more external attributions are made as the behavior becomes increasingly inconsistent with extant impressions of the target (the goodness-of-fit rule). It was found that the goodness-of-fitrule, but not the consensus rule, was used in the attribution of causality for acquaintances when the behavior could be made to fit with extant impressions. When the behavior was completely inconsistent with extant impressions, both consensus and goodness-of-fit rules were used, such that the most external attributions were made in the poor fit/high consensus condition.     

Sex-role identity as a moderator of the polarization effect in person perception

Male and female subjects with different sex-role identities (Androgynous, Masculine, Feminine, Undifferentiated) rated likability of male and female stimulus persons in the impression formation paradigm. Under certain conditions all the female subjects and feminine males manifested a polarization effect; that is, they made more polar ratings of opposite-sexed stimulus persons in contrast to same-sexed stimulus persons. On the other hand, under certain conditions Masculinetyped males rated male stimulus persons more negatively than female stimulus persons. Results were discussed in terms of moderating effects on the polarization phenomenon and possible explanatory mechanisms.     

Evidence for direct visual access to letter identities

Subjects were presented with two letters from the set BCDFGHLNPORTVZ, one in upper case and one in lower case. Subjects were required to decide, as quickly as possible, whether the two letters on each trial were the same (e.g., Bb) or different (e.g., Bd). Because letters were always physically different, subjects presumably must name the letters in order to respond. Reaction times were predicted by the visual similarity of the letters, and not by their phonemic distinctive feature similarity. Consistent with previous work showing that a word's meaning can be assessed directly from visual information, the findings suggest that visual analysis of a capital or small letter can result in knowing the latter name without further linguistic processing. These results were interpreted as an example of automatic detection as described by Schneider and Shiffrin (1977).     

Valence and instrumentality contributions to understanding occupational preference

Studies on the expectancy model have presented conflicting results concerning the usefulness of valence ratings. There has been some support for valence as significantly adding to the predictability of occupational preference, while other studies have indicated that instrumentality ratings alone are sufficient.     

The “feminine mystique” in male-dominated jobs: A comparison of attitudes and background factors of women in male-dominated versus female-dominated jobs

This paper examines various background factors plus success and work-related atttudes of 324 women as aggregated into one of three groups: those women working in male-dominated jobs, those in female-dominated jobs, and those in relatively sex-ratio balanced jobs. Overall results show that women holding male-dominated jobs are more likely to be older, better educated, have fathers with higher educational levels, and are more likely to be childless as compared to women in female-dominated jobs. Holding age and education constant, women in male-dominated jobs usually rated definitions of success as more important to their feelings of well-being than did women in female-dominated jobs. With these same constants, there were few differences in work attitudes among the three groups, but contrary to expectations, women in female-dominated jobs rated the importance of their work higher than did women in male-dominated jobs. The variables best predicting whether a woman held a male-dominated job were college attainment, problems related to sex discrimination, the age of the participant, her feelings toward achieving a very high salary, her feelings of the importance of her work, and her feelings about becoming an authority in her job.     

Developmental changes in incidental memory as a function of processing level,congruity, and repetition

Second-, fifth-, and ninth-grade students (8, 11, and 14 years of age, respectively) answered acoustic and semantic questions about words which were either congruent or incongruent with the questions. Subsequently, students' free recall of the words was unexpectedly tested. For words presented once in the list, only orienting task and congruity main effects were found. For twice-presented words, grade level interacted with both variables in that older students' recall was better than younger students' only for semantically encoded, congruent words. This finding is consistant with the hypothesis that developmental increases in semantic knowledge enhance the potential for encoding elaboration, but is in apparent conflict with the results of M. F. Geis and D. M. Hall (Child Development, 1978, 49, 857–861) who found no such interaction for second- and fifth-grade children. The different age spans included in the two studies provides one resolution of the discrepancy in results. However, a second experiment tested the importance of a procedural difference between the two studies. M. F. Geis and D. M. Hall (Journal of Experimental Child Psychology, 1976, 22, 58–66; 1978) presented the question after the stimulus word while we presented the question before the word. For ninth-grade students, the question after condition resulted in an attenuation of the recall difference between semantic and acoustic questions compared to the question before condition. It was argued that the pattern of developmental differences in incidental memory that is obtained may be related to which procedure is utilized.