Body type preferences and body characteristics associated with attractive and unattractive bodies by african Americans and Anglo Americans

Body type preferences, body characteristics associated with body attractiveness, and personal characteristics associated with unattractive body types (e.g., obese bodies) were examined in African American and Anglo American female and male respondents. African American males preferred larger body types for females, and associated more favorable and fewer unfavorable characteristics with obese females than did Anglo American males. Females of both races preferred a slightly thin body type for males, although African American females associated fewer unfavorable characteristics with obese males than did Anglo American females. Difference between the races in body characteristics associated with attractiveness suggest race-specific prototypes of body attractiveness that correspond to physical differences between the races. Race-specific standards of attractiveness within cultures are discussed.     

A study of the near-miss involving Weber’s law and pure-tone intensity discrimination

A study of pure-tone intensity discrimination is presented in which amplitude changes are detected in 1000 Hz tone bursts 15–20 msec in duration. The masking function (log detectable increment vs log background intensity) is found to have a slope of 9/10 when calculations are carried out via energy measurements. This near-miss to Weber’s law is in agreement with other data reported in the literature. The masking slope proves to be essentially independent of stimulus duration between 15 msec and 1.5 sec. Our stable slope parameter is interpreted as a detectability restriction generated by “mass-flow” phenomena in the auditory channel. These phenomena are thought to be similar to the fluctuations accompanying a noisy or turbulent stream of events. Pure-tone intensity discrimination is then analyzed as a special case of energy detection.     

The relation between information and variance analyses

Analysis of variance and uncertainty analysis are analogous techniques for partitioning variability. In both analyses negative interaction terms due to negative covariance terms that appear when non-orthogonal predictor variables are allowed may occur. Uncertainties can be estimated directly from variances if the form of distribution is assumed. The decision as to which of the techniques to use depends partly on the properties of the criterion variable. Only uncertainty analysis may be used with a non-metric criterion. Since uncertainties are dimensionless (using no metric), however, uncertainty analysis has a generality which may make it useful even when variances can be computed.The work of the senior author was supported by Contract N5ori-166, Task Order 1, between the U.S. Office of Naval Research and The Johns Hopkins University. This is Report No. 166-I-192, Project Designation No. NR 145-089, under that contract.     

Assessing the social acceptability of the functional analysis of problem behavior

Although the clinical utility of the functional analysis is well established, its social acceptability has received minimal attention. The current study assessed the social acceptability of functional analysis procedures among 10 parents and 3 teachers of children who had recently received functional analyses. Participants completed a 9-item questionnaire, and results suggested that functional analysis procedures were socially acceptable.     

The cost of good fortune: when positive life events produce negative health consequences

Previous research regarding the effects of positive life events on physical health has been inconclusive. We tested the hypothesis that positive life events have a detrimental effect on health only among people with negative self-views. This prediction derives from an identity disruption model of stress, which holds that an accumulation of life events that are inconsistent with the self-concept leads to physical illness. To test the hypothesis, we conducted two prospective studies in which positive life events and self-esteem were used to predict the development of illness over time. In accordance with predictions, both studies showed that desirable life changes were associated with increases in illness only among subjects with low self-esteem; among subjects with high self-esteem, positive life events were linked to better health. Implications for understanding the manner in which life events affect health are considered.     

A statistical description of verbal learning

Free-recall verbal learning is analyzed in terms of a probability model. The general theory assumes that the probability of recalling a word on any trial is completely determined by the number of times the word has been recalled on previous trials. Three particular cases of this general theory are examined. In these three cases, specific restrictions are placed upon the relation between probability of recall and number of previous recalls. The application of these special cases to typical experimental data is illustrated. An interpretation of the model in terms of set theory is suggested but is not essential to the argument.