Conditioned inhibition is not the symmetrical opposite of conditioned excitation: A test of the Rescorla-Wagner model

Rescorla and Wagner's (1972) linear associative model of learning predicts that a neutral stimulus will become weakly excitatory if it is paired with a conditioned inhibitor and the compound is not reinforced. If the inhibitor is not allowed to extinguish during these pairings, the model predicts that the neutral stimulus will become strongly excitatory. Rescorla (1971) has presented some evidence to support the former prediction of a weak effect. Experiment I tested the latter prediction of a strong effect using rats in a conditioned emotional response paradigm, and found no evidence that the pairings made the neutral stimulus excitatory. Experiment II replicated Rescorla's results, but showed that even on a relearning test the experimental group learned no faster than a novel stimulus control group.     

A study of career patterns of women college graduates

The employment and educational histories of 498 women college graduates of 1968 were investigated to assess the women's career progress in the 10 years since college. The women were classified in a proposed seven-category system of career patterns adapted from those of D. G. Zytowski (Personnel and Guidance Journal, 1969, 47, 660–664) and K. P. Wolfson (Journal of Counseling Psychology, 1976, 23,(2), 119–125). The system established categories for pioneer (nontraditional) as well as traditional women's occupations at varying levels of both span (length) and degree of participation in paid employment. The seven resulting career pattern groups were compared on personal and career-relevant variables. The findings indicated that a majority of the women graduates have worked continuously outside the home since 1968, and many have entered pioneer occupations. Only 1.4% of the present sample of women were full-time homemakers throughout the 10-year period. On the other hand, 28.5% of the women in the sample were currently employed in pioneer occupations. A majority of the women (79%) have combined both careers and homemaking. Women in traditionally female careers, as compared with pioneer women, were less likely to change careers across the 10-year period, and were more likely to move in a horizontal or downward career direction. Pioneer women were more likely than traditionals to move from lower-to higher-level careers. The findings support the use of the adapted classification system in future studies and also provide data for use with women who are now planning for future careers and lifestyles.