Evaluation and recall of evidence: Authoritarianism and the Patty Hearst case

By using the Patricia Hearst case as the stimulus material, two experiments were conducted to examine the relationship between authoritarianism and recall of evidence. In Experiment I it was found that high authoritarians recall more prosecution evidence than defense evidence. This was not the case for the low authoritarians. Results concerning the hypothesis that high authoritarians would recall more character information than low authoritarians were equivocal. In Experiment II a trend indicating that high authoritarians draw more direct inferences from incriminating evidence than do low authoritarians or an attorney was obtained. The results are discussed in terms of previous findings, authoritarian theory, and characteristics of the Patricia Hearst case.     

The advantages of mathematical modeling over traditional methods in the analysis of category clustering

A mathematical model for the analysis of category clustering is developed and testd. The model, which can be applied to categories of any size, is an extension of a two-item statistical model developed by Batchelder and Riefer (Psychological Review, 1980, 87, 375–397), and is equivalent to their model when categories consist of two items. The model is based on a current theory of clustering which postulates that the learning of a list of category items occurs on different hierarchical levels. Two category list-learning experiments are presented, and the data from these experiments are analyzed using the general statistical model. The first experiment reveals that the probabilities of storing and retrieving a cluster increase with category size, while the learning of items as singletons decreases. The effects of within-category spacing indicate that the storage of clusters decreases while cluster retrievability increases with an increase in input spacing. In the second experiment, the storage and retrieval of clusters are shown to be unaffected by whether the presentation of items is uncued or cued with the name of the category. However, the association of items decreases and the learning of items as singletons increases with uncued presentation. In the final sections, the general statistical model is compared to other methods for the measurement of category clustering. The model is shown to be superior to numerical indices of clustering, since these measures are not based on any theory of clustering, and because unitary measures cannot capture the multiprocess nature of categorized recall. The model is also argued to have certain advantages over other mathematical models that have been applied to category clustering, since these models cannot account for situations in which a portion of the items are clustered while others are learned singularly.     

Operant baseline procedures suppress infant social behavior

Two groups of six 3-month-old infants participated in a study which contained four consecutive 2-min periods. During Periods 2 and 4 both groups received adult social stimulation on the same prearranged schedule. The treatments during Periods 1 and 3 differed between the two groups; no adult was present for the A-S group, while the B-S group received the typical operant baseline (unresponsive adult treatment) for these two periods. Social stimulation caused a significant increase in vocal rate from the preceding control period for both groups. Infants in the A-S group vocalized at the same rate during the two periods in which the adult was absent and at similar rates during the two stimulation periods. For infants in the B-S group, baseline procedures suppressed vocal rates and did not provide a neutral or operant level of responding with which the effects of social conditioning could be compared.     

Prediction as a means of inducing tolerance

Female subjects were exposed individually to the attitude item responses of a similar or dissimilar stranger. They were asked either to copy down the stranger's attitudes or to predict (with accurate feedback) how the stranger answered each item. Predict subjects were found to be more tolerant of the dissimilar stranger than were Copy subjects, while both groups were equally attracted to the similar stranger. It was suggested that training people to anticipate disagreements may be a useful way of fostering tolerance.     

Classical conditioning of the rabbit's nictitating membrane response under fixed and mixed CS-US intervals

The rabbit's nictitating membrane response was classically conditioned to a tone CS, followed by an electric shock US, at two randomly alternating CS-US interstimulus intervals (ISIs). Different groups were exposed to different proportions of 200- and 700-msec ISIs. The study revealed: (a) CR percentage was a direct function of the proportion of 200-msec ISIs; (b) trials to the first test-trial CR were an inverse function of the proportion of 200-msec ISIs; (c) CR onset latencies decreased over training; (d) CR peak latencies coincided with the temporal loci of the US; and (e) groups exposed to both ISIs acquired double-peaked CRs. Moreover, the amplitudes of nictitating membrane responses in the present experiment paralleled certain quantitative aspects of the free operant key peck response rates of pigeons trained under two mixed inter-reinforcement intervals. The results were discussed with respect to the micromolar response shaping and macromolecular CS-trace accounts of classical conditioning.     

Attitude bolstering when behavior is inconsistent with central attitudes

An experiment was conducted to study the effects of behaving inconsistently with a central attitude. In a theoretical account, it is suggested that subjects who score high on a feminism scale and who fail to solve a sex-role problem and thus demonstrate sexist thinking will be motivated to adopt feminist (nonsexist) behavior more than subjects who are either lower in feminism or who don't fail such a problem. Since the attitude is central, attitude bolstering rather than change in the direction of the behavior should be the preferred mode of inconsistency reduction for such subjects. Bolstering, in the form of positive affirmative action decisions, was generally demonstrated by subjects who failed the sex-role problem. This effect was more pronounced for those highest in feminism. No such effects on affirmative action decisions were observed for subjects who didn't fail the sex-role problem. Results support the view that threats to one's self-image caused by one's own counter-attitudinal actions lead to attempts to reestablish those threatened values. A conceptual analysis of the conditions under which bolstering rather than attitude change in the direction of the behavior should be expected is presented.     

Expressed and inventoried vocational interests as predictors of college graduation and vocational choice

This is a follow-up study of 195 agricultural students originally tested when they entered college in 1970. Students whose Strong Vocational Interest Blank (SVIB) patterns were consistent with their stated choice of major were the congruent sample. Students whose SVIB patterns were inconsistent with their stated choices of major were the discrepant sample. A follow-up was made on graduation rates, eventual major, and job placement. Discrepant subjects changed major more often but graduated at the same rate as congruents. The SVIB did not seem to add anything to the student's expressed interests in predicting college continuation. There was a trend for congruent graduates to more frequently take jobs which matched their majors.     

Relative influence of sex composition on job desirability

The purpose of this study was to examine the relative influence which the sex composition of a job exerts on its perceived desirability. The influence of job sex composition was studied in relation to three other factors: security, suitability of type of work, and company recognition. Ninety-five college students rated 108 job profiles on desirability based on various combinations of the four factors studied. The results indicated that sex composition exerted the least influence on job desirability while security and suitability of type of work exerted the greatest influence. It is suggested that past research focusing on the sex composition of a job as a determinant of its desirability has produced findings which are primarily a function of the research method utilized.     

The causal structure of situations: The generation of plausible causal attributions as a function of type of event situation

The causal structures for each of four types of situations—interpersonal failure, noninterpersonal failure, interpersonal success, and noninterpersonal success—were explored and compared. A first group of subjects generated plausible causes for five specific situations in each of the four general types of situations. A second group of subjects provided similarity data on these causes, which were used in a cluster analysis of the causes. A third group of subjects rated the generated causes on each of six dimensions reported in the attribution literature: changeability, locus, stability, intentionality, globality, and controllability. Analyses of the clusters of causes and the ratings revealed (a) different types of causes were generated for different types of situations, (b) different types of situations led people to generate causes that differ in dimensional location, (c) the various causal dimensions were highly intercorrelated. These findings were applied to A. W. Kruglanski's (Psychological Review, 1980, 87) model of attribution processes. In addition, implications for the study of interpersonal situations and for the cognition-motivation debate over “self-serving” bias in attribution were discussed. Finally, several methodological issues were examined.     

Turning a penrose triangle inside out

Why do impossible figures, which cannot exist in three dimensions, appear to make threedimensional sense? In order to shed some light on this question the limits may be tested to which three-dimensional operations on these figures can be performed. In this paper a particularly difficult operation, viz., torus eversion is attempted. Not only is an eversion found to be possible but an unfamiliar impossibility develops. The regular form of the eversion is shown to be unique.     

The US preexposure phenomenon in the conditioned suppression paradigm: A role for conditioned situational stimuli

Four experiments evaluated possible associative and nonassociative accounts of the retardation in the acquisition of conditioned suppression produced by repeated prior exposure to an electric shock US. Associative interference resulting from conditioning of situational stimuli during preexposure to shock was suggested by the findings that signaling the occurrence of high-intensity shock with a discrete nontarget CS during the preexposure phase reduced the magnitude of the retardation effect compared to an unsignaled shock preexposure treatment (Experiments 1 and 4), nonreinforced presentations of putatively conditioned situational stimuli prior to conditioned suppression training reduced the magnitude of the retardation effect (Experiment 2), and the magnitude of the retardation effect was directly related to the intensity of preexposure shock (Experiment 3). Nonassociative interference was suggested by the finding that signaling the occurrence of low-intensity shock with a discrete nontarget CS during the preexposure phase did not reduce the magnitude of the retardation effect compared to an unsignaled shock preexposure treatment (Experiment 4). It was suggested that associative and nonassociative mechanisms govern the US preexposure phenomenon obtained in the conditioned suppression paradigm, and their relative contribution depends upon the intensity of shock.     

Field and laboratory studies of littering

Four studies are reported. In the first, it was shown that littering rates vary substantially across areas of a large urban region and that the rate for a particular area is correlated with the amount of litter already present. It was also found that males litter more than females and young people more than old. In the second study, a laboratory experiment, a causal relationship between the amount of litter in an area and the likelihood it will be littered was demonstrated. A third study replicated this latter finding, but did not find a relationship between the amount of stress experienced by a subject and the likelihood that he or she would litter. In the fourth study, a field experiment, subjects who were approached and asked to sign a petition about clean streets littered less than control subjects.