共查询到20条相似文献,搜索用时 15 毫秒
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Latent-class hierarchical multinomial models are an important extension of the widely used family of multinomial processing
tree models, in that they allow for testing the parameter homogeneity assumption and provide a framework for modeling parameter
heterogeneity. In this article, the computer program HMMTree is introduced as a means of implementing latent-class hierarchical
multinomial processing tree models. HMMTree computes parameter estimates, confidence intervals, and goodness-of-fit statistics
for such models, as well as the Fisher information, expected category means and variances, and posterior probabilities for
class membership. A brief guide to using the program is provided. 相似文献
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Michael Borenstein Jacob Cohen Hannah R. Rothstein Simcha Pollack John M. Kane 《Behavior research methods》1990,22(3):271-282
To facilitate the computation of statistical power for analysis of variance, Cohen developed the index of effect sizef, defined as theSD between groups divided by theSD within groups. A microcomputer program for statistical power allows the user to compute the value off in any of several ways: by specifying the mean andSD for every cell in the ANOVA; by specifying the mean value for the two extreme cells and the pattern of dispersion for the remaining cells; by estimating the proportion of variance in the dependent variable that will be explained by group membership; and/or with reference to conventions for small, medium, and large effects. The program will compute power for any single set of parameters; it will also allow the user to generate tables and graphs showing how power will vary as a function of effect size, sample size, andα. 相似文献
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Stephen V. Faraone 《Journal of psychopathology and behavioral assessment》1986,8(4):367-379
A computer program for Markov chain analysis is presented and discussed. The program is written in the language of the Statistical Analysis System (SAS) but detailed knowledge of SAS is not required for its use. The program tests hypotheses about the goodness of fit of first- and second-order Markov models. It also tests if transition probabilities are homogeneous between the first and the second half of each sequence.Presented, in part, at the Association for the Advancement of Behavior Therapy Convention, November 1984. 相似文献
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An interface circuit to connect a microphone to an Apple Macintosh computer is described. The Apple Macintosh mouse port is used as the input port, and the microphone activation simulates a mouse press. 相似文献
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Parallel and competitive processes in hierarchical analysis: perceptual grouping and encoding of closure. 总被引:13,自引:0,他引:13
S Han G W Humphreys L Chen 《Journal of experimental psychology. Human perception and performance》1999,25(5):1411-1432
The role of perceptual grouping and the encoding of closure of local elements in the processing of hierarchical patterns was studied. Experiments 1 and 2 showed a global advantage over the local level for 2 tasks involving the discrimination of orientation and closure, but there was a local advantage for the closure discrimination task relative to the orientation discrimination task. Experiment 3 showed a local precedence effect for the closure discrimination task when local element grouping was weakened by embedding the stimuli from Experiment 1 in a background made up of cross patterns. Experiments 4A and 4B found that dissimilarity of closure between the local elements of hierarchical stimuli and the background figures could facilitate the grouping of closed local elements and enhanced the perception of global structure. Experiment 5 showed that the advantage for detecting the closure of local elements in hierarchical analysis also held under divided- and selective-attention conditions. Results are consistent with the idea that grouping between local elements takes place in parallel and competes with the computation of closure of local elements in determining the selection between global and local levels of hierarchical patterns for response. 相似文献
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Mark D. Reckase 《Behavior research methods》1974,6(2):208-212
A program to implement tailored testing using the Rasch one-parameter logistic model is described and the problems encountered in its writing are discussed. 相似文献