Ethnography of an auto body repair class: Some implications for cultural transmission

This paper is a study of an ethnography of an auto body repair class in a postsecondary technical school. The class provides the students with the auto body repair skills. The students also learn employer/worker relationships and worker/worker relationships. The students learn their skills by doing them. They learn the role of a worker by being in a situation which simulates an auto body shop situation.     

A multiprocessor system for generating visual displays and controlling experiments

A laboratory is described that is based on an IMSAI 8080 microcomputer and an IMLAC graphics display system. Procedures for using the system are described and illustrated.     

Stimulus- or response-induced excitation. A comparison of the behavior of introverts and extraverts

The tendency to inspect visual material (slides) rather than to respond by pressing a key in an attempt to move on to the next slide, was compared among introverts and extraverts. As predicted from Brebner and Cooper (1974): (1) extraverts inspected the stimuli for a shorter time before making their first response, (2) extraverts made more responses at a faster rate than introverts did, and (3) extraverts produced a significantly higher proportion of runs of accelerating responses.     

Individual differences in perceptual problem-solving ability: A response analysis approach

This study investigates the performance of a large sample of eleven year olds on a perceptual maze task, which has the advantage that it can either be used as a psychometric test or a problem-solving task. The sample was trisected on the basis of the overall pass/fail score and the three ability level groups were compared with respect to their overall response paths and on specific binary decision configurations. Clear differences between the groups were found in the distribution of solution paths, even on quite simple items. Some reasons for these differences were derived from the analysis of the specific binary responses since the prevalence of certain types of errors and responses were found to be associated with level of ability. Explanations for the observed qualitative differences in maze solving are put forward together with a discussion of the viability of the experimental approach adopted.     

Dissonance and self-perception: An integrative view of each theory's proper domain of application

The literature concerning the controversy between dissonance and selfperception theories is reviewed. It is proposed that the two theories be regarded not as “competing” formulations but as complementary ones and, furthermore, that each theory is applicable only to its own specialized domain. Self-perception theory, it is suggested, accurately characterizes attitude change phenomena in the context of attitude-congruent behavior and dissonance theory attitude change in the context of attitude-discrepant behavior. Attitude-congruent is defined as any position within an individual's latitude of acceptance; attitude-discrepant as any position in the latitude of rejection. An experimental test of these notions produced confirming evidence. Subjects who were given an opportunity to misattribute any potential dissonance arousal to an external stimulus did not change their attitudes, relative to low choice subjects, if they were committed to endorsing a position in their latitude of rejection. If the commitment concerned a position in the latitude of acceptance, however, these subjects did exhibit attitude change relative to low choice subjects.     

Control of attention around the fovea.

Three experiments tested young adults' abilities to use size and location cues to find and identify a target letter in a visual field containing 8 to 12 letters. Location cues (relatively near to or far from the fovea) and size cues (relatively large or small) were given before the display. Compared with response times on neutral, no-cue trials, location and size cues produced independent cost and benefit effects. The best fitting quantitative models allow attentional resources to be distributed in ringlike areas varying in distance from the fixation point, within which further selection of items by their relative size is possible.