Personality profiles of women attending an artificial insemination by donor clinic

The EPQ was administered to 43 women attending an artificial insemination by donor (AID) clinic. The results indicated that relative to age-norms, the women were significantly lower on Psychoticism and Neuroticism, and significantly higher on the Lie scale. There were no differences between those women who did, and those who did not, become pregnant over a 6-month period. On the basis of the personality scores obtained, we would describe women attending AID clinics as calm, controlled individuals who have chosen, in conjunction with their partner, what is a socially-acceptable solution to the problem.     

The effects of physostigmine during the acquisition of avoidance behaviour as a function of the intersession interval

Rats were trained and tested on an avoidance task in a shuttle box. The change in the performance of the control rats over two sessions was found to be a U-shaped function of the interval between the sessions. The change in performance of rats injected with physostigmine prior to the second session was also found to be a U-shaped function of the intersession interval, although the drug was shown to impair avoidance behaviour. These results are consistent with those of Hamburg (1967) and of Biederman (1970), and support the general contention that cholinergic mechanisms in the brain are involved in the control of avoidance and escape behaviour in the rat. They do not, however, necessarily support the hypothesis advanced by Deutsch (1969, 1971) to describe a biochemical basis of learning and memory, especially if it is used to explain the effects of cholinesterase inhibitors on avoidance behaviour in the shurtlebox.     

Some Effects of Reduction of Extra-Classroom Crowding in a School Environment

The effects of reduced enrollment were studied by examining two architecturally identical schools. One school experienced a 43% reduction in enrollment while the other's enrollment remained constant. Reduction in enrollment had a number of positive benefits, including improved attitudes about the school environment and reduced faculty absenteeism. Findings regarding academic performance were less clear.