How to avoid aging effects in free recall

This brief review was prompted by an article appearing in an earlier issue of this journal (Cohen & Stewart, 1982). It identifies several conditions under which aging effects in free recall of complex materials may be avoided. Under these conditions the diminution of aging effects may occur even when strategic requirements are evident. Results are interpreted in terms of the contextual approach to life-span cognitive developmental psychology.     

THE EFFECTS OF REALISTIC PREVIEWS: A STUDY AND DISCUSSION OF THE LITERATURE

The effects of realistic job previews (RJPs) were studied with a sample of 842 candidates for telephone service representative. Two types of preview, a film and job visit, were used. Results showed no significant differences between RJP candidates and control candidates with respect to job acceptance, met expectations, job commitment and turnover. Because the findings were at variance with the conclusions of previous RJP research the data from previous studies were reexamined. Based on pooled data from eleven studies the average effect of RJPs on turnover rate was estimated as six percentage points overall. Neither the type of media used nor the length of time turnover is studied appears to interact with RJP effectiveness. RJPs appear to be more effective with more complex jobs, however. Explanations of RJP effects on turnover have not been consistently supported. Though data are limited, self-selection, met expectations and coping ability do not appear to be impacted by RJPs. There is some evidence that RJPs result in more positive job related attitudes, but the explanation for this is not clear. Difficulties in interpreting job preview research are noted, including insufficient statistical power, differences in organizational roles and the lack of a clear operational definition of realism.     

Therapist Perceptions of Client Reactions

This study examined therapist ability to identify client-reported reactions. Sixteen therapists each saw two volunteer clients for single counseling sessions. In postsession reviews, clients rated the helpfulness of, and indicated their reactions to, each therapist intervention. Therapists also rated the helpfulness of, and indicated their perceptions of client reactions to, each therapist intervention. In 50% of the instances therapists matched clients, that is, reported the same reaction cluster as the clients did. There were higher match rates on the reaction clusters of therapeutic work (62%), supported (54%), and no reaction (46%) than negative reaction (27%) and challenged (14%). When therapists matched on therapeutic work, helpfulness ratings for the following intervention were higher than when therapists did not match. In contrast, when therapists matched on negative reactions and no reaction, helpfulness ratings for the following intervention were lower than when they had not matched. Thus, therapists' ability to match client reactions was related to their ability to generate helpful interventions. Implications for practice and future research are discussed.     

NONSTATIONARY DATA SHOULD NOT BE “CORRECTED”

Ellis (1979), in his study of interaction patterns in groups, discovered that his data did not satisfy the assumptions of a simple Markov model. In particular, he found that his data failed to satisfy the assumption of stationarity. In response to this, Ellis employed a new composite matrix procedure to generate a single set of predicted one-step transition probabilities. This essay argues that this procedure (1) does not generate one-step probabilities, (2) does not produce legitimately interpretable results, and (3) is a fundamentally inappropriate response to the discovery of nonstationary data. The composite matrix procedure used by Ellis is discussed and appropriate responses to the discovery of nonstationary interaction data are proposed.