Canonical analysis of longitudinal and repeated measures data with stationary weights

When measuring the same variables on different occasions, two procedures for canonical analysis with stationary compositing weights are developed. The first, SUMCOV, maximizes the sum of the covariances of the canonical variates subject to norming constraints. The second, COLLIN, maximizes the largest root of the covariances of the canonical variates subject to norming constraints. A characterization theorem establishes a model building approach. Both methods are extended to allow for Cohort Sequential Designs. Finally a numerical illustration utilizing Nesselroade and Baltes data is presented.The authors wish to thank John Nesselroade for permitting us to use the data whose analysis we present.     

Factorial validity and reliability of the Devereux Elementary School Behavior Rating Scale

The factorial validity and internal consistency reliability of the Devereux Elementary School Behavior Rating Scale was examined using a random sample of elementary-school children in grades I through 6. Teacher ratings of subjects' classroom behaviors on the Devereux approximated ratings obtained by the standardization sample. Internal consistency (coefficient alpha) reliability coefficients of the 11 Devereux subscales were found to be quite adequate, ranging from 80 to 93. Intercorrelations among Devereux subscales were moderate to high. A principal factor analysis of the 11 subscales produced two factors with eigenvalues greater than 1.0, which cumulatively accounted for 70.2% of the total variance. When rotated via an orthogonal (Varimax) solution, the two resultant factors appeared to measure emotional adjustment and academic related dimensions of classroom behavior. Given the problem of multicollinearity that was shown to exist among subscales, the authors suggest caution in the interpretation of Devereux subscales as discrete factors.The authors gratefully acknowledge computer support funding provided by the University of Wisconsin, Graduate School Research Committee Grant 135-1537 to the first author.     

Long-term predictive validity of the WPPSI: An 11-year follow-up study

As part of a longitudinal study, a control group of 85 children were tested on the WPPSI at 5$\text{1}\text{2}$ years and the WISC-R at 16$\text{1}\text{2}$ years. Educational attainment was also assessed in adolescence. Data are presented illustrating the long-term predictive validity of the WPPSI. The Full Scale IQs on the two tests intercorrelated +0.86.     

The linguistic organization of public controversy: A note on the pragmatics of political discourse

Conclusion This paper does not mean to imply that it is only public controversy that can meaningfully affect political outcomes, or even that it is the most important factor. Rather, we have attempted to indicate that public controversy constitutes a forum on which political actorsact; on which they attempt to implicate each other and the public in terms of some preferred view of the controversy at hand. It is certainly the case that the formal structure of the government and power relationships provides important constraints in terms of which controversy may take place. Yet within these constraints, actors can meaningfully construct various views of the structure of the controversy which differently construe the rights and obligations of participants. In this sense, the course of public controversy may in part be understood as a function of the language employed by these actors, both to the extent that particular expressions stand as documentary evidence of underlying discrepancies about the shape of the controversy and to the extent that the logic of certain speech-acts constrains the forms subsequent statements may take.     

An analysis of the role and trait components of sex-biased occupational beliefs

This study investigated the role and trait components of sex-biased occupational beliefs. A repeated-measures analysis of variance design was used to assess the agreement patterns of 198 female and male undergraduates to three types of sentences: (1) traits necessary for a variety of occupations (job requisites); (2) the relative possession of these traits by men and women (traits); and (3) the relative suitability of women or men for these occupations (roles). A significant sex of subject by sentence type interaction was found, indicating that the sex of the subjects as well as the type of sentence (job, role, or trait) contributed to overall occupational beliefs. Moreover, tests of the simple main effects revealed that sentence type was significant for both females and males, and that sex was significant within two of the three levels of sentence type: job requisites and role statements. The results indicated that greater understanding of occupational stereotyping may be attained through research aimed at distinguishing between role and trait components of job stereotypes.This research was completed as part of the first author's doctoral dissertation research while supported by an NIMH Traineeship at Michigan State University. Use of the Michigan State University computer facilities was made possible in part through support from the National Science Foundation.     

The effects of specifying job requirements and using explicit warnings to decrease sex discrimination in employment interviews

To determine the relative effectiveness of instructions designed to reduce sex discrimination in employment interviews, 96 students rated resumes for both a male and a female applicant. In one instructional condition subjects were told the specific requirements necessary for success on the job. In a second condition subjects were warned that it was illegal to discriminate on the applicant's sex. A third condition received both instructions, and a fourth received neither. Results revealed a series of interactions suggesting that the use of legal warning alone tended to increase the ratings of male applicants in some cases and influenced how male evaluators rated all applicants in other cases. The major implications were that legal warnings may actually bias ratings in favor of male applicants and may occasionally lead male evaluators to make lenient ratings. The specification of job requirements was suggested as a viable method of reducing discrimination.This work was supported in part by funds from the Foundation of the University of North Carolina at Charlotte and from the State of North Carolina. The author wishes to thank P. S. Siegfried, J. Thomas Puglisi, and an anonymous reviewer for their comments and revisions of an earlier draft.     

Memory determinants of response latency to produce speech

In three experiments, subjects were asked to memorize related phrase pairs and then to produce one of these phrases from a cue. In Experiment 1, it was found that both memorization times and response latencies increased with the number of words that differed between the phrases. In Experiment 2 and 3, it was shown that the presence of a strong modifying or semantic relationship between words in one phrase influenced both memorization time and response latency when those same words were contrasted between the two phrases. The implications of the results for models of storage, retrieval, and planning of speech are considered.     

Emotional Reactions to News Events1

This study was designed to determine (a) what dimensions underlie emotional reactions to news events, (b) whether these dimensions are independent, (c) whether reactions to major news events are similar for different groups of people, and (d) whether a simple method could be developed for evaluating emotional reactions to news events. Subjects rated the similarity of their emotional reactions to 20 page-one newspaper stories in a paired-comparison task. The data were multidimensionally scaled using the KYST computer program. Two dimensions emerged that accounted for 89% of the judgment variance: pleasure/displeasure and degree of arousal. Interpretation of these dimensions was verified using a semantic differential task. The two dimensions were not independent. They were related by a U-shaped function: News events farther from evaluative neutrality were judged more arousing. A second study with 40 news events and a different subject population replicated these findings. Subjects' ratings of news events on three scales (happy, important, and exciting) were sufficient to recover the KYST dimensions. The theoretical and practical implications of these. results are discussed.     

PROCEDURAL VARIATIONS IN GROUP CONTINGENCIES: EFFECTS ON CHILDREN'S ACADEMIC AND SOCIAL BEHAVIORS

There has been little research on the effects of the many procedural variables in applied group contingencies. In the present study, an individualized contingency and three group contingencies with different “responder” criteria (e.g., reward based on the group average, reward based on the work of a designated, low-achieving student, or reward based on the work of a randomly selected student) were applied to the academic work of primary grade children in a learning disabilities classroom. Group social interaction during each contingency was measured systematically. Although there were large individual differences in students' academic and social responses to the different contingencies, some consistent effects were observed. Two of the four low-achieving target students did their best academic work during the group contingency which focused on their performance as a designated responder. This type of contingency also produced high levels of positive social interaction in three of four groups of children observed.