Comparison of K-ABC performance between at-risk and normal preschool children

This study examined differences in K-ABC performance between at-risk (n = 44) and normal (n = 49) preschool children. For the group at-risk, all of the mean global scores on the K-ABC clustered around a standard score of approximately 90. The normal group's mean scores were 15 to 21 standard-score points higher and clustered near 110. The results of t tests for independent samples indicated that the normal group's scores on both the global scales and K-ABC subtests were significantly higher than the at-risk group's scores in nearly every instance. Correlations among scores were consistent with previous findings for preschoolers on the K-ABC. For the normal group, correlations obtained among the global scales were nearly identical to those reported for the standardization sample. For the at-risk group, however, the correlation of .75 between Sequential processing and Achievement was higher than that (.58) between Simultaneous processing and Achievement.     

Problem solving in hyperactive,normal, and reading-disabled boys

Diagnostic problem solving was examined in groups of hyperactive, normal, and nonhyperactive reading disabled boys matched on age and verbal IQ. On the matrix solution task employed (a version of the game of 20 Questions) hyperactives used less efficient questions and strategies than the other two groups, in spite of the task being designed to maximize the performance of the hyperactives. Readingdisabled children were not significantly worse than normal children on the task. The results were interpreted as suggesting that the attentional difficulties of hyperactives retard the development of strategies for solving complex problems. Nonhyperactive reading disabled children may be less affected in this area because of the absence of significant attentional difficulties.This article is based on a doctoral dissertation submitted to the Faculty of Graduate Studies and Research of McGill University by the first author. We are grateful to the students, teachers, and principals of the following schools in the Montreal area: Allancroft, Beacon Hill, Briarwood, Cedar Park, Greendale, Hillcrest, Lakeside Heights, Martinvale, Sunny Dale, Thomas H. Bowes, and Vivian Graham. Special thanks are due Rhonda Amsel, John MacNamara, and Chet Olsen for their help and advice.     

Sex differences in student dominance behavior in female and male professors' classrooms

Measures of verbal participation and interaction among graduate students provided a comparison of male and female dominance behavior in the classroom, and measures of the contextual effect of sex of professor provided further data on the interrelatedness of sex, status, and dominance behavior. Male students were found to exhibit significantly more aggressiveness (interruptive behavior) than female students in both male and female professors' classes, although significantly more male aggressiveness occurred in female professors' classes than in male professors classes. Male students were significantly more assertive (frequency and duration of speech) in female professors' classes only. In student-to-student interaction, aggressiveness was predominantly exchanged between sexes rather than among same-sex members.The author would like to thank Julie Parks and Joanie Rubin for their help with this research.     

Human taste response as a function of locus of stimulation on the tongue and soft palate

Taste recognition thresholds and psychophysical intensity functions were determined for NaCl, sucrose, QHC1, urea, and citric acid for four loci on the tongue and on the soft palate. The results showed greater differences between loci than previously reported. Contrary to older data, the threshold for bitter was found to be lower for the fungiform papillae at the front of the tongue and for the soft palate than for the vallate papillae. For all compounds, the slopes of the intensity functions varied with the locus of stimulation. The functions for most compounds were steepest at the vallate and foliate loci.     

The Effects of Participation in Decision-Making on Worker Satisfaction and Productivity: An Organizational Simulation1

Although correlational evidence of a positive relationship between participation in decision-making and satisfaction is relatively consistent, whether participation in decision-making has a causal effect on satisfaction remains unclear. The present research examined, through an organizational simulation in which high and low levels of participation in decision-making were manipulated, the causal effect of participation on satisfaction and productivity. The subjects were 128 male undergraduates randomly assigned to 32 four-person groups. Results of the experiment showed that participation in decision-making had a significant positive effect on satisfaction. In addition, the correlation between perceived influence and satisfaction was positive (r= .31). Contrary to theoretically derived predictions, participation had no impact on productivity.     

Chronic self-destructiveness: Conceptualization,measurement, and initial validation of the construct

Individual differences in various behaviors suggest that those who are primarily motivated by current emotional factors are more likely than those motivated by more distant cognitive considerations to engage in acts that are ultimately self-destructive. To assess and explore these behavioral differences, 12 samples of undergraduate subjects, totaling 864 (527 females, 337 males), a group of 15 businesswomen, and 111 male VA patients were used to develop a measure of this construct in a series of reliability and construct validity studies. By means of internal-consistency item analyses, two cross-validated 52-item measures of chronic self-destructiveness were constructed for males and females. Reliability was established with respect to internal consistency (alpha coefficients range from .73 to .97) and temporal consistency over a 1-month period (test-retest correlations range from .90 to .98). There is a slight drop in chronic self-destructiveness scores across age groups. Test scores were found to be positively related to external locus of control, negatively related to Type A coronary-prone behavior, and unrelated to either social desirability response set or need for achievement. Individuals high in chronic self-destructiveness, compared to those with low scores, are more likely to be in treatment for drug or alcohol abuse, to report having cheated in courses, to have had traffic violations, to report having gone through a rebellious stage in adolescence, and to postpone obtaining a medical test for cancer. Chronic self-destructiveness appears to be a personality dimension that affects behavior across a wide range of ages and situations.We wish to thank John Wapner for his assistance in obtaining data in the clinical sample.     

Women in popular music: A quantitative analysis of feminine images over time

Popular song lyrics from the years 1946, 1956, 1966, and 1976, were content analyzed for feminine images. Eleven stereotyped female images were examined: woman as evil; emphasis on physical characteristics; woman's need for man; woman as a possession of man; woman as mother; woman as sex object; woman as delicate; woman as child; woman on a pedestal; woman as physically attractive; and woman as supernatural. Significant changes over time were found for 8 of the 11 images. Of the songs sampled from 1946–1976, 96% contained at least one of the female stereotypes examined in this investigation.