Linguistic factors in conditional reasoning

An experiment is reported which demonstrates the influence of three cognitive variables on adults' abilities to reason with conditional arguments embedded in either causal-temporal or class inclusion content. The three variables are the linguistic form of the conditional rule, the principle of conditional reasoning, and the order of the components in the conditional rule. The results showed considerable similarity in the effects of these factors for the two types of concrete content, but some interesting differences were found. The findings are discussed in relation to the results of recent investigations which involved abstract content and/or other deductive reasoning paradigms.     

Delayed matching by fornix-transected monkeys: The sample, the push and the bait

In the acquisition event of ordinary delayed matching to sample the monkey sees a sample, displaces it, and finds a food reward underneath; subsequently the retention test consists of a choice between that sample and a distractor, and the strength of the memory laid down by the acquisition event may be assessed by the correctness of choice at the retention test. The present experiments varied the acquisition events and examined the effect of those variations on normal and fornix-transected monkeys' memory. One variation was to proceed as normally but never to bait the sample at acquisition; this variation allowed assessment of the role of the food reward in ordinary matching. Another was to present the sample, baited and to be displaced, as normally, but to present also the distractor, baited but not requiring to be displaced, in a second acquisition event; this “push-match” variation allowed assessment of memory for the displacement. The main result from normal monkeys was that matching to unbaited samples was learned much faster than matching to baited samples. Following fornix transection, final performance levels in matching to baited and to unbaited samples were unimpaired but push-match showed a permanent deficit. These results support earlier indications that fornix-transected monkeys have normal sensory memory but are deficient in the memory of instrumental responses.     

A Study of Husbands and Wives from Dual-Career and Traditional-Career Families

Husbands and wives of dual-career families were compared with husbands and wives of traditional-career families on the variables of inner-directedness, self-actualizing values, existentiality, self-regard, and self-acceptance. Also, comparisons between the two sets of couples were made on shared and unshared interests. Our findings indicate that the husbands and wives in our sample of dual-career families do not differ in major ways from our sample of husbands and wives of traditional-career families; however, in every instance of difference, the direction of difference supports the view that husbands and wives of dual-career families are more inner-directed and flexible in applying personal values than husbands and wives of traditional-career families.