The effect of candy reward on I.Q. scores was investigated in 72 first-and second-grade children. All subjects were administered Form A of the Peabody Picture Vocabulary Test and, based upon these scores, were divided into three blocks: low, middle, and high. From each block, subjects were randomly assigned to one of three conditions (contingent reward, noncontingent reward, or no reward) that were in effect during administration of Form B. Results showed that candy given contingent upon each correct response increased I.Q. scores for the initially low scoring subjects, but had no influence on the scores of middle and high scoring subjects.
This study investigated the effects of candy reinforcement on I.Q. test scores in first and second graders of above-average intelligence. Thirty-six subjects were randomly assigned to one of three groups and either given candy contingent on correct responses, noncontingently, or not given candy. After measuring all subjects on Form L of the revised Stanford Binet, each subject in the contingent group was given an M & M immediately following each correct answer on Form M, while a yoked-comparison subject received the same number of M & M's before responding to a question and therefore without regard to correctness of answers. It was expected that both types of candy administration would produce higher I.Q. change scores than the no-candy control group, but there were no statistically significant differences among the three treatments. The differences between the first and second test scores were 4.17 (contingent), 4.67 (noncontingent), and 1.00 (no reinforcement). Reasons for this failure to replicate previous findings were discussed.
Personality differences among three self-ascribed render-role types (predominantly masculine, predominantly feminine, or no predominant orientation) were investigated within a group of 128 male and female homosexuals. The results, utilizing the Adjective Check List (ACL) and a specially designed questionnaire placed all groups within +/- one standard deviation of the mean on all ACL scales except abasement. A multiple discriminant analysis demonstrated that 10 of the ACL scales significantly discriminated between self-ascribed gender-role types. It was suggested that homosexuality may be appropriately conceived of as an alternate life style rather than a noslogical entity, and that gender-role may, in some instances, be more important than biological sex as regards one's self perceived personality characteristics.
This study examined the effects of attentional focus on race walking performance. Sixteen experienced race walkers, eight males and eight females, were randomly assigned to walk four separate half-mile segments on a quarter-mile track under specific sets of instructions. Two sets of instructions were externally oriented and two were internally oriented. The internally oriented instructions included a set asking the subjects to focus on cadence (the number of steps taken in a designated period of time) and a set asking them to focus on stride length (the distance covered in a single step). The externally oriented instructions asked subjects to use a dissociative strategy. Although no overall difference was found between internal and external focus, results indicated that the focus on cadence was superior to both the external focus, p<.05, and a focus on stride length, p<.05. No significant differences between the stride length focus and the external focus were found. These results are discussed in terms of the importance of using an internal focus that is beneficial.
Personality characteristics, as measured by the Personality Research Form (PRF-E) and a specially designed questionnaire, of 33 male hemophiliacs were investigated. Subjects were subdivided into three separate categories, bases on the severity of their clinical manifestations of the disease. Results showed that, as a whole, all scored within plus or minus one standard deviation of the mean on all PRF-E scales. When the data were analyzed according to severity level, however, a significant difference appeared among the groups on the Harmavoidance scale, which indicated that those suffering from the most severe form of the disease were the least likely to avoid potentially hazardous activities. These findings and those from the questionnaire were discussed. It was suggested that when the disease is quite severe subjects may abandon attempts to seek and control life-style antecedents of the occurrence of bleeding episodes.
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