Kindergarten children's use of category membership

Kindergarten children (N = 70) learned to order 12 photographically presented objects. The objects were well known and either unrelated or categorizable into two, three, four, or six well-known categories. Free recall was assessed. Results indicated that the children used category membership both to learn and to recall the items. However, they processed the list composed of six pairs of items at least as efficiently as lists composed of fewer but larger groups of items (including a list indexed as easiest through previous adult performance).     

Interpersonal comparison versus persuasive argumentation: A more direct test of alternative explanations for group-induced shifts in individual choice

One class of theories explains group induced shifts in individual choice in terms of interpersonal comparison process. By comparing himself with others a member finds out that his position is uncomfortably discrepant, e.g., he is overly “cautious” or overly “risky”. Knowledge of this discrepancy presumably is necessary and sufficient to induce him to change his initial choice. Another class of theories holds that merely knowing one is different from others is unimportant. Shifts in choice occur because during discussion a member is exposed to persuasive arguments which prior to discussion were not available to him. Thus, if in a factorial design one independently varied (a) the number of others' choices available for comparison and (b) the number of arguments others presented in support of these choices, interpersonal comparison theories would predict the magnitude of the shift to be a function of (a) and not of (b), while theories of persuasive argumentation would predict the opposite. When such an experiment was performed the only reliable main effects were based on the number of arguments, (b), as predicted by persuasive arguments. In no instance did effects involving (a) approach significance.     

Flooding as a function of shock level and length of confinement

In a one-way avoidance learning situation with rats, response prevention trials facilitated extinction as an increasing function of the duration of the prevention interval for shock levels below 1.8 mA. For 1.8 mA, extinction was a nonmonotonic function of the response prevention interval, with 15- and 210-sec durations showing the most facilitation of extinction. For all response prevention intervals except 15 sec, trials to extinction was a direct function of shock level. For 15 sec, it was an inverse function of shock level. The unexpected interaction of shock level with prevention interval was explained by invoking the concept of relief.     

Disagreements and self-esteem: Support for the competence-reinforcement model of attraction

The competence-reinforcement model of attraction (Byrne & Clore, 1967) theorizes that interpersonal disagreements produce negative affect and decrements in personal competence. Subject dislike for disagreeing strangers has been a frequent and reliable finding, but the theoretical issue of whether disagreements elicit negative affect because they threaten one's sense of personal competence has been less thoroughly investigated. The present study examines the relationship between attitude disagreements and self-esteem. On the basis of the competence-reinforcement model of attraction it was hypothesized that disagreements would produce decrements in selfesteem, and that the decrements would be most pronounced among subjects expressing the greatest dislike for the disagreeing stranger. Both hypotheses were supported, and it was concluded that the competence-reinforcement model provides an adequate account of both attraction and self-esteem loss.     

Utilization of context for word identification decisions in children

The use of context was investigated with subjects from fourth- and sixth-grade populations. A Word Boundary task was used that requires subjects to make word-identification decisions both with and without contextual information. Results indicated that context was utilized effectively by the sixth-grade students, while the fourth-grade students showed small context-use effects. These findings are consistent with performance models that emphasize the role of predictive behavior in language analysis.     

Hobbits and orcs: Acquisition of a sequential concept

Subjects solved the hobbits-orcs problem repeatedly until they made no errors on two successive solutions. Groups varied in the kind of feedback given after errors. Further support was obtained for Thomas' (this journal) conclusion that subjects organize the sequence of moves in small subsequences, rather than individual moves. Differences between feedback groups suggested that the organization is oriented forward in the problem, and this contrasts with GPS' retroactive organization of this problem. Comparison between feedback groups also leads to the conclusion that subjects learned from positive information indicating which response is correct, rather than by a process of eliminating errors or sampling new strategies after errors. Analysis of acquisition data agreed with the hypothesis of all-or-none learning at individual states, except for one state where the additional complexity was related to an ambiguity about backward moves. The general pattern of results was invariant over a change in the characters of the problem (men and elves) designed to produce a reversal of relationship between the characters concerning who was prevented from outnumbering whom.     

Familiarity and attraction to stimuli: Developmental change or methodological artifact?

One hundred thirteen 7-, 9-, and 11-year-old children viewed a series of stimuli consisting of Chinese characters exposed a different number of times. Following exposure to the stimuli, children ranked the stimuli according to liking. Seven- and 9-year-olds preferred the more familiar characters to those seen less frequently, but the oldest children preferred novel stimuli. In rankings taken 3 weeks after original exposure, a subsample of 11-year-olds preferred the more familiar characters. These results suggest that discrepancies obtained in previous research on the affective consequences of mere exposure are of methodological rather than developmental origin. Possible critical differences in procedure are discussed.     

The stutterer's reaction to the telephone as a speaking situation

A review of the literature indicates that one of the most commonly feared talking situations among stutterers is speaking on the telephone. One hundred-thirty stutterers who feared speaking on the telephone were interviewed regarding their fear of telephone calling and answering, the age at which they began to fear calling and answering, and their fear reactions to eight specific telephone calling situations.Data was analyzed for all subjects, male/female, black/white, and mild/moderate/ severe stuttering groups. Analysis indicated that telephone calling was judged to be more feared than telephone answering with the exception of the black stutterers. Acquisition of fear of the telephone occured earlier for telephone answering than for calling within most subgroups. When general reactions to the eight telephone situations were considered, the black stutterers had the most severe fear reactions while the male and moderate stutterers had the least severe reactions.