objective: this study has used item response theory (irt) to examine the psychometric properties of health-related quality-of-life. method: this investigation is a descriptive- analytic study. subjects were 370 undergraduate students of nursing and midwifery who were selected from tabriz university of medical sciences. all participants were asked to complete the farsi version of whoqol-bref. sa...

conclusions there were significant distinctions in the skin temperature distribution during exercise according to the activity of the area under consideration during exercise, which may be important in the development of physiological models and heat flux analyses for different purposes. results during pre-exercise, all tsk reached a steady-state (p ≤ 0.05), which ensured adequate thermal stabi...

The serial position effect shows that two interrelated cognitive processes underlie immediate recall of a supraspan word list. The current study used item response theory (IRT) methods to determine whether the serial position effect poses a threat to the construct validity of immediate list recall as a measure of verbal episodic memory. Archival data were obtained from a national sample of 4,21...

C 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 U N C O R R E Many clinicians in sleep medicine, psychiatry, and psychology remain unaware of the suffering and distress caused by chronic nightmares. This lack of awareness extends to the therapeutic tools that effectively reduce or eliminate the problem. Many nonpharmacologic techniques have been proposed...

of the Dissertation Identifying DIF for Latent Classes with the Dirichlet Process by Miles Satori Chen Doctor of Philosophy in Statistics University of California, Los Angeles, 2015 Professor Peter Bentler, Chair In Item Response Theory (IRT), Differential Item Functioning (DIF) occurs when individuals who have the same ability, but belong to different groups, have different probabilities of an...

Psychometrics has recently seen the development of complex measurement models to better represent test and item data. Item Response Theory (IRT), in particular, comprises a set of non-linear latent variable models that appear to have several conceptual and empirical properties that make them more valuable in practice than classical test theory methods. However, IRT-based models typically requir...

Penelitian ini adalah penelitian empirik dengan tujuan untuk mengetahui (1) karakteristik tes UAS kelas VI Sekolah Dasar yang dianalisis pendekatan Item Response Theory (IRT), (2) perbandingan tingkat daya beda butir (IRT) . dilakukan di Negeri 1 Megati berada Kabupaten Tabanan pengambilan data menggunakan teknik stratified random sampling. Karakteristik disusun software Winsteps. Hasil analisi...