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21.
The “factor” analyses published by Schultz, Kaye, and Hoyer (1980) confused component and factor analysis and led in this case as in many others to unwarranted conclusions. They used component analysis to develop factor models that were subjected to restricted (confirmatory) maximum likelihood analysis, but the final models for which good fits with the observed correlations were obtained were not common factor models. They were, however, discussed as such and conclusions drawn accordingly. When their correlation matrices are analyzed by the principal factors method, two factors are sufficient to account for the intercorrelations. These two factors generally support the a priori expectation of a difference between intelligence tasks and spontaneous flexibility tasks. They are also quite similar in younger and older subjects, when similarity is judged in terms of factor pattern. Factor loadings for the younger subjects, however, are much smaller than expectations based on the respective ranges of talent in the two groups of subjects or on past experience with similar tests in undergraduate student populations. 相似文献
22.
A large national sample of high school seniors rated their preferences for the allocation of work and family duties within their own prospective marriages. The results indicate that many seniors favor half-time or full-time work for wives without children. On the other hand, the majority prefer that the mother of preschool children stay home, although half-time work is acceptable to many. Respondents who are male or White or did not have a working mother themselves are somewhat more conservative on these issues. Virtually all seniors view less than full-time employment by the husband as unacceptable. With regard to child care and housework, most seniors prefer equal sharing between the spouses. A comparison of four senior classes reveals a slight trend from 1976 to 1979 toward increased sharing of duties. 相似文献
23.
A restraint procedure was developed to reduce movement-related artifacts during the acquisition of EEG data from unanesthetized, unparalyzed rats. It combines the low-stress properties of a cloth restraint bag with the improved immobility of a rigid restraint device. The spontaneous behavior of the rat facilitates both the induction of and the subsequent release from restraint. 相似文献
24.
The paper reviews traditional attributional explanations for the over-justification effect in task motivation, isolates their weaknesses, and proposes an alternative account based on the notion that individuals process task information schematically. It is proposed that task information relating to motivation is interpreted by cognitive schema or “templates,” which identify tasks as being either instrumental or expressive in nature. When the expressive template is evoked, the task is perceived to be playlike and is experienced as inherently motivating. When the instrumental template is evoked, the task is perceived as a means to an end and task motivation results from the perceived value of the task for attaining intrinsic and/or extrinsic rewards. Structural characteristics of these templates are proposed. According to this account, overjustification effects occur when the perceived characteristics of tasks change such that the expressive template is replaced by the instrumental template and expressive motivation is transformed into instrumental motivation. 相似文献
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26.
Lloyd Bond 《Psychometrika》1979,44(3):351-355
Tucker, Damarin and Messick proposed a base-free measure of change which involves the computation of residual scores that are uncorrelated with true scores on the pretest. The present note discusses this change measure and demonstrates that, because of an incorrect derivation by the authors, properties they attribute to (the coefficient for the regression of true scores from the second testing on true scores from the first testing) are, in fact, properties ofb, the ordinary regression coefficient. A correct derivation of the initial position—change correlation in terms of is obtained, and Tucker et al.'s discussion of the law of initial values is reconsidered.The preparation of this paper was supported by the Learning Research and Development Center supported in part as a research and development center by funds from the National Institute of Education. 相似文献
27.
28.
Paul D. Guild Lloyd H. Strickland John C. Barefoot 《European journal of social psychology》1977,7(4):465-476
Studied attitude change following counter-attitudinal advocacy where there was little incentive for subject compliance in an attempt to compare dissonance and self-perception theory predictions. The extent of attitude change was determined either by self-report or by having subjects predict their own true attitudes purportedly monitored by the experimenter using a ‘bogus pipeline’. Forty-eight male and female subjects, students from an introductory Psychology course, were invited to take part in a study of Current Campus Issues. They wrote a short statement that argued against an issue for which they had previously held a positive attitude. Results indicate that there was a significant attitude change in both conditions (p < .003). Attitude change under these circumstances is more successfully explained by the self-perception theory than dissonance theory. 相似文献
29.
Latent roots of random data correlation matrices with squared multiple correlations on the diagonal: A monte carlo study 总被引:1,自引:0,他引:1
In order to make the parallel analysis criterion for determining the number of factors easy to use, regression equations for predicting the logarithms of the latent roots of random correlation matrices, with squared multiple correlations on the diagonal, are presented. The correlation matrices were derived from distributions of normally distributed random numbers. The independent variables are log (N–1) and log {[n(n–1)/2]–[(i–1)n]}, whereN is the number of observations;n, the number of variables; andi, the ordinal position of the eigenvalue. The results were excellent, with multiple correlation coefficients ranging from .9948 to .9992.This research was supported by the Office of Naval Research under Contract N00014-67-A-0305-0012, Lloyd G. Humphreys, principal investigator, and by the Department of Computer Science of which Richard G. Montanelli, Jr., is a member. 相似文献
30.
Lloyd G Humphreys Pang-Chieh Lin Allen Fleishman 《Journal of research in personality》1976,10(1):42-58
Data consisting of 79 cognitive measures from Project TALENT for 100,000 white and black high school students have been analyzed for possible race by sex interactions. Control variables included geographical area, grade in high school, and socio-economic class. Race by sex interactions are largest when socioeconomic class is controlled and are highly related to the size of the main effect of sex as well. White boys and girls differ more than black boys and girls whether the overall sex difference favors males or females. Sex by grade and, to a lesser extent, sex by area interactions were also moderately large and consistent with the size of the main effect of sex. Since there are no consistent relationships with other main effects, and since the measures producing sex differences also tend to produce the interactions, it is concluded that sex differences and the interactions with sex share the same causes. Differences between these results and those of Jensen are also discussed. 相似文献