Defensive style and performance on objective personality measures

Two studies on the relations between various styles of defense and the power or validity of self-reports on objective personality questionnaires. The power of individual items on the Rotter Internal-External Locus of Control scale to discriminate between subjects defined as internals or externals by a median-cut procedure using the total score was not affected by the presence Or absence of a projective defensive style. However, the presence of repressive tendencies did appear to restrict item power. Prediction from two achievement scales taken from Gough's California Psychological Inventory was not influenced by level of repression, was affected somewhat adversely by a projective style, and was most clearly contaminated by a rationalizing defense. It was proposed that the differential effects of defensive styles upon the validity of personality tests depended upon the convergence or divergence of the cognitive operations involved in the type of defense and in the type of personality measure.     

Individual differences in cognition: Relationship between verbal ability and memory for order

The crucial role of order information in language has led to the suggestion that psychometrically measured verbal ability may be related to memory for order. The literature pertaining to this hypothesis is briefly reviewed and various methodological difficulties discussed. The results of three experiments indicated that (a) order and item information may be retained separately; (b) verbal ability is related to the short-term recall of order; (c) verbal ability is unrelated to memory for order when testing involves recognition rather than recall; and (d) the relationship between verbal ability and memory for order is most pronounced when the originally presented order must be transformed at output (as in the “digits backward” task). An output process in which material is decoded and held in an output buffer until decoding is complete is viewed as the most likely locus of the verbal ability-memory for order relationship.     

Dissociations of language function in dementia: A case study

In this report we describe and attempt to characterize the deterioration in semantic knowledge occurring in a victim of a progressive dementing disease. The subject was unable to match even highly familiar naming words with their actual or pictured referents; instead, she consistently overextended verbal labels to closely associated distractors. The alteration in scope of referential meanings suggested by this overextension effect was apparently related to a breakdown in the structure of underlying categories. On a nonverbal match-to-sample procedure, for example, dogs were treated as exemplars of the cat family. Evidence for the breakdown of semantic knowledge was not limited to picture labeling paradigms. Thus, we found that the subject was unable to utilize semantic context in the written disambiguation of spoken homophones but could, at the same time, use even minimal syntactic cues as the basis for proper lexical selection. This last result was consistent with other lines of evidence pointing to the relative preservation of syntactic operations, in marked contrast to the semantic loss. The importance of this dissociation of function in organic pathology is considered from a number of perspectives, including its relevance to models of language organization in the brain.     

Reaction-time measures of stutterers and nonstutterers

Ten adult male stutterers and ten adult male nonstutterers participated in six reaction-time tasks designed to measure manual, acoustic, and laryngeal-region response latencies. The analysis revealed statistically significant differences between the groups for the acoustic data only. The results indicated that acoustic reaction-time differences are not accounted for by the speed of the general laryngeal response.     

Differential effects of personality on access to various long-term memory codes

Arousal, as indexed by personality measures, has been related to memory encoding, organization, and retrieval. In an attempt to investigate one of the component information-processing mechanisms underlying both encoding and retrieval, the effects of introversion-extraversion on performance in a simultaneous matching task was investigated. As predicted from earlier research, personality did not influence performance on a physical identity matching task but extraverts were faster than introverts in making taxonomic category matches (a semantic task). Somewhat unexpectedly, extraverts were also faster at making “homophone” identity matches. Arousal, then, appears to influence access to long-term memory codes of any type—a characteristic that may be reflected in tests of both encoding and retrieval.     

Participants' postexperimental reactions and the ethics of bystander research

Researchers and review boards lack an empirical base for evaluating the ethics of proposed research procedures. This paper contributes to such a base by reporting participants' postexperimental affective reactions to bystander experiments employing deception and their evaluations of the ethics of these experiments. Anonymous “ethics” questionnaires were administered to 231 subjects who had participated in one of three laboratory experiments on helping and had been debriefed. Participants reported very little negative affect. Most viewed the research as ethically justified, and found their participation both instructive and enjoyable. There was little variation in reactions as a function of subjects' sex, the particular experiment they had participated in, and their behavior during the experiment. Implications of these findings for assessing the ethics of future deceptive and stressful research are discussed.     

Decision behavior with changing signal strength

The Theory of Signal Detectability (TSD) has nearly replaced classical notions of the threshold because of its ability to separate sensory and decision processes in weak-signal detection and recognition paradigms. The primary emphasis of recent work has concentrated on the sensory rather than the decision aspects and almost all work has been exclusively at one signal strength. We propose a model to describe behavior at different signal strengths based on subjective rather than objective distributions. The model predicts performance at a constant likelihood ratio (LR) criterion (even though subjective distributions are the basis for determining cutoff criteria) unless the observer adopts a Subjective Neyman-Pearson (SNP) objective. Results from an experiment in visual discrimination suggest that some observers in fact operate at constant objective LR's as signal strength is varied randomly over a wide range. The objective LR's of the other subjects changed dramatically with signal strength, but this behavior is consistent with the use of a Subjective Neyman-Pearson (SNP) decision rule and the linear relation between subjective and objective log LR's found in the studies of subjective probability.     

Works, works better

A theory of Goodman and Elgin concerning the individuation of literary works is examined and criticized. An alternative account is offered to meet various of the difficulties in their proposal. In addition, it is suggested that there may not be asingle account of the notion of a literary work that can best do all the jobs we expect of it.     

Effects of aging on priming and skill learning.

This study examined the effects of aging on 2 kinds of implicit memory; repetition priming and skill learning. In Experiment 1, older adults showed less improvement in the skill of reading inverted words than did young adults, but priming performance did not differ for the 2 age groups. Similarly, in Experiment 2, in a partial-word identification task, skill learning was observed only for young adults, whereas there was no age difference in priming. Experiments 1a and 2a, however, showed that when older adults were presented with more perceptual information than were young adults, the age deficit in skill learning was eliminated. These results indicate that skill learning is impaired under data-limited conditions, whereas priming is unaffected under these conditions. It is proposed that the age deficit in skill learning is related to a deficit in perceptual organization and reorganization.