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Direct linkHamaker, E. L.; Grasman, R. P. P. P. – Psychometrika, 2012
Many psychological processes are characterized by recurrent shifts between distinct regimes or states. Examples that are considered in this paper are the switches between different states associated with premenstrual syndrome, hourly fluctuations in affect during a major depressive episode, and shifts between a "hot hand" and a…
Descriptors: Psychological Patterns, Statistical Inference, Data, Simulation
Ceulemans, Eva; Van Mechelen, Iven – Psychometrika, 2008
In psychological research, one often aims at explaining individual differences in S-R profiles, that is, individual differences in the responses (R) with which people react to specific stimuli (S). To this end, researchers often postulate an underlying sequential process, which boils down to the specification of a set of mediating variables (M)…
Descriptors: Stimuli, Psychological Studies, Simulation, Individual Differences
Ceulemans, Eva; Van Mechelen, Iven – Psychometrika, 2004
This paper presents a new hierarchical classes model, called Tucker2-HICLAS, for binary three-way three-mode data. As any three-way hierarchical classes model, the Tucker2-HICLAS model includes a representation of the association relation among the three modes and a hierarchical classification of the elements of each mode. A distinctive feature of…
Descriptors: Classification, Simulation, Mathematical Models, Psychometrics
Rouder, Jeffrey N. – Psychometrika, 2005
Van Breukelen (this issue) provides an approach to using both response time (RT) and accuracy for (1) measuring latent abilities of participants even when they may trade speed for accuracy, and for (2) providing insight into the psychological processes underlying task performance. In this commentary, I focus on the second of these aims and assess…
Descriptors: Reaction Time, Cognitive Psychology, Computation, Psychological Patterns
Ip, Edward H.; Wang, Yuchung J.; de Boeck, Paul; Meulders, Michel – Psychometrika, 2004
Psychological tests often involve item clusters that are designed to solicit responses to behavioral stimuli. The dependency between individual responses within clusters beyond that which can be explained by the underlying trait sometimes reveals structures that are of substantive interest. The paper describes two general classes of models for…
Descriptors: Item Response Theory, Psychological Testing, Multivariate Analysis, Psychological Patterns
Ram, Nilam; Chow, Sy-Miin; Bowles, Ryan P.; Wang, Lijuan; Grimm, Kevin; Fujita, Frank; Nesselroade, John R. – Psychometrika, 2005
Weekly cycles in emotion were examined by combining item response modeling and spectral analysis approaches in an analysis of 179 college students' reports of daily emotions experienced over 7 weeks. We addressed the measurement of emotion using an item response model. Spectral analysis and multilevel sinusoidal models were used to identify…
Descriptors: Individual Differences, Item Response Theory, Models, College Students
