Costs and benefits of strategy construction in a speeded discrimination task

The costs and benefits of constructing and utilizing a strategy for performing a speeded discrimination task were assessed in terms of time and mental resources. The strategy involved using information about the position a word occupied in order to respond to its identity more rapidly. The resources used to construct and utilize the strategy were assessed from responses to probes presented at various times during the task. In Experiment 1, the probe required a manual response, whereas in Experiment 2, the probe required a vocal response. Strategy construction interfered with the probe task in Experiment 1 but not in Experiment 2, suggesting that strategy construction required resources specific to the manual response system. There was also some evidence that strategy construction required general resources, but the evidence for specific resources was much stronger. The findings are consistent with our previous ideas about how the strategy is represented (Logan, 1980a; Logan & Zbrodoff, 1979). The different results with different responses to the probes point out important limitations on previous studies of probe interference and of cost-benefit analysis, which each focused on a single dimension of cost and benefit. The differences suggest that a multiple-resources approach to probe interference and cost-benefit analysis might be more appropriate.     

Attractiveness and Income for Men and Women in Management1

It is commonly believed that attractive people are more successful, but the empirical support for this belief is mixed. A number of role-playing, laboratory studies have demonstrated that more attractive men are more often hired, but the laboratory data for women are less consistent. Few studies have explored the effects of attractiveness on actual hiring and starting salaries for men or women. Even less work has been done on the impact of attractiveness once on the job. It was predicted that there would be positive effects for attractiveness and that the effects would be stronger as people worked longer on their jobs. To test this prediction, a sample of 737 male and female MBA graduates from the years between 1973 and 1982 was used to explore how facial attractiveness relates to starting and later salaries. Results indicated that more attractive men had higher starting salaries and they continued to earn more over time. For women, there was no effect of attractiveness for starting salaries, but more attractive women earned more later on in their jobs. By 1983, men were found to earn $2600 more on the average for each unit of attractiveness (on a 5-point scale) and women earned $2150 more. Implications for research in this area are discussed.     

The transition from algorithm to retrieval in memory-based theories of automaticity

Two memory-based theories of automaticity were compared. The mixture model and the race model both describe automatization as a transition from algorithmic processing to memory retrieval. The mixture model predicts that, with training, the variability of reaction time will initially increase, and later decrease in a concave downward manner, whereas the race model predicts the variability will decrease only in a concave upward manner. The mixture model predicts that using both algorithm and retrieval on a single trial will be slower than using the algorithm alone, whereas the race model predicts the reverse. The experiments used an alphabet arithmetic task, in which subjects verified equations of the form H + 3 = K and made subjective reports of their strategies on individual trials. Both the variability of reaction times and the pattern of reaction times associated with the strategy reports supported the race model.     

On the nature of talker variability effects on recall of spoken word lists.

In a recent study, Martin, Mullennix, Pisoni, and Summers (1989) reported that subjects' accuracy in recalling lists of spoken words was better for words in early list positions when the words were spoken by a single talker than when they were spoken by multiple talkers. The present study was conducted to examine the nature of these effects in further detail. Accuracy of serial-ordered recall was examined for lists of words spoken by either a single talker or by multiple talkers. Half the lists contained easily recognizable words, and half contained more difficult words, according to a combined metric of word frequency, lexical neighborhood density, and neighborhood frequency. Rate of presentation was manipulated to assess the effects of both variables on rehearsal and perceptual encoding. A strong interaction was obtained between talker variability and rate of presentation. Recall of multiple-talker lists was affected much more than single-talker lists by changes in presentation rate. At slow presentation rates, words in early serial positions produced by multiple talkers were actually recalled more accurately than words produced by a single talker. No interaction was observed for word confusability and rate of presentation. The data provide support for the proposal that talker variability affects the accuracy of recall of spoken words not only by increasing the processing demands for early perceptual encoding of the words, but also by affecting the efficiency of the rehearsal process itself.     

A simple behavioral treatment program for psychogenic encopresis

A treatment program based on behavioral psychological principles which can be explained to parents in one session and supervised by letters and phone calls each week was found to be highly effective in completely eliminating the problem of psychogenic encopresis. A controlled study and extensive clinical use have indicated 100% effectiveness for the program when carefully adhered to.     

Polydipsia induced by a schedule of brain stimulation reinforcement

Rats pressed a lever for a signaled brain stimulation reinforcement on either fixed-interval or fixed-ratio schedules. Both schedules induced polydipsia, with a median water intake of 22.5 ml (about four times the control level) in 3-hr sessions. The stimulation did not directly elicit drinking or other behaviors. In a second experiment, two out of four rats became polydipsic during extinction following a continuous schedule of brain stimulation reinforcement. The results were compared with previous attempts to induce polydipsia with a schedule of brain stimulation reinforcement and were discussed in terms of polydipsia as a model of human “compulsive” behaviors.     

Counseling the Aging: Some Practical Considerations

Although counseling older individuals requires the use of basic helping skills, other complementary phases of working with this special population must be addressed. This article outlines the multiple-loss aspect of the aging individual's environment and suggests some specific strategies for assisting these persons to realize their ongoing potential and residual personal strength.     

Students' Reactions to Groups in a University Counseling Center

This article describes an evaluative study of students' reactions to three types of groups—assertiveness training, personal growth, and ethnic rap—offered by a university counseling center. A 16-item questionnaire distributed to 130 group participants yielded 90 usable returns. Chi-square calculations comparing the responses of the three types of groups revealed statistically significant differences between them on eight of the 16 items. Samples of the responses to the open-ended items convey the flavor and feeling tone of the reactions to the group experience. One of the notable results of the study was the development of a new group intended to integrate the most useful elements identified by the students' reactions.