Abstract

The objective of the study is to investigate the measurement accuracy of latent variables depending on a number of dichotomous test items and variation range. Methods: Investigation is based on the simulation experiments. Results: The authors make recommendations for selecting a number of dichotomous test items and variation range depending on the required measurement precision of latent variables. Scientific novelty: The research demonstrates statistical correlation between the measurement precision of latent variables and a number of test items and variation range. Importance for practice: The research results can be used while developing the questionnaires and tests for measuring the latent variables.

Highlights

  • NPXJEYPNu FGIUHKHEYKR MLPEYP TLGHLQME ?HDEGE 4q FGIQLQHMHPR IU L GHODP LYNhEG IU 4'PD NPXJEYP IY q'PD HPEW “4 METEM IU 4'PD NPXJEYP FGIUHKHEYKR MIOHPN ”q JHUUHKXMPR IU q'PD PENP HPEW MIOHPN ?.

  • CDEY QLNEJ IY PDE KLMKXMLPEJ FGIQLQHMHPHEN JLPL IU JHKDIPIWIXN WLPGH LGE OEYEGLPEJ2.

  • ‹DEGE YP n PDE hDIME FLGP IU YXWQEG n _YJ L GLYJIW YXW' QEG ETEYMR JHNPGHQXPEJ IY LY HYPEGTLM | ?.

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Summary

NPXJEYPNu FGIUHKHEYKR MLPEYP TLGHLQME ?

HDEGE 4q FGIQLQHMHPR IU L GHODP LYNhEG IU 4'PD NPXJEYP IY q'PD HPEW “4 METEM IU 4'PD NPXJEYP FGIUHKHEYKR MIOHPN ”q JHUUHKXMPR IU q'PD PENP HPEW MIOHPN ?. CDEY QLNEJ IY PDE KLMKXMLPEJ FGIQLQHMHPHEN JLPL IU JHKDIPIWIXN WLPGH LGE OEYEGLPEJ2. ‹DEGE YP n PDE hDIME FLGP IU YXWQEG n _YJ L GLYJIW YXW' QEG ETEYMR JHNPGHQXPEJ IY LY HYPEGTLM | ?. ^N LY ELWFME HY CLQME PDE OEYEGLPEJ WLPGH IU JLPL UIG HPEWN hDHKD TLGHEN HY L GLYOE UGIW ? ^N LY ELWFME HY CLQME PDE OEYEGLPEJ WLPGH IU JLPL UIG HPEWN hDHKD TLGHEN HY L GLYOE UGIW ? MIOHPN PI ‘ ? MIOHPN HN FGENEYPEJ?

PXJEYP oGIUH'
PLYJLGJ fGGIG ? ? ? ? ? ? ? ? ? ?
PLYJLGJ fGGIG ? ?
LYLMRNHN IU vXENPHIYYLHGEN XNEJ UIG WELNXGEWEYP IU MLPEYP TLGHLQMENB
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