Workplace flexibility in Poland – the polytomous IRT models formulated by latent class approach

• Authors: Genge Ewa

Title variants

PL

Gotowość do zmian warunków pracy w Polsce – analiza z wykorzystaniem politomicznych modeli IRT w podejściu modelowym w taksonomii

• Languages of publication: EN

Abstracts

EN

Item response theory is considered to be one of the two trends in methodological assessment of the reliability scale. In turn, latent class models can be viewed as a special case of model-based clustering, for heterogeneous multivariate discrete data. The combination of the two mentioned latent variable models concerns the assumption that the population under study is composed by homogeneous classes of individuals with very similar latent trait levels. In this approach, the model selection is based on the ordered steps consisting of selecting specific features, such as the number of latent dimensions, the number of latent classes, and the constraints on the item parameters. The main goal of the paper is to find groups of Poles not currently working for pay with similar workplace flexibility levels and to analyse the (selected) item characteristics of the International Social Survey Programme questionnaire, as well using the discretized variant of polytomous IRT models, formulated by a latent class approach.

PL

Teoria reakcji na pozycję (item response theory) zaliczana jest do jednego z dwóch nurtów metodologicznych w ocenie rzetelności skali. Z kolei analizę klas ukrytych (latent class analysis) można wpisać w nurt podejścia modelowego w taksonomii, wykorzystujący ideę mieszanek rozkładów. Modele te wykorzystywane są do analizy jakościowych zbiorów danych o niejednorodnej strukturze, w których liczba klas jest nieznana (tzw. zmienna ukryta). W ostatnim czasie na popularności zyskuje podejście modelowe w taksonomii, łączące teorię reakcji na pozycje z modelami klas ukrytych. W pracy przedstawiono zastosowanie podejścia modelowego w taksonomii wykorzystującego teorię IRT w badaniu umiejętności dostosowania się do zmian polskich respondentów poszukujących pracy. Badania przeprowadzone zostały z wykorzystaniem pakietu MultiLCIRT programu R dla danych pochodzących z Międzynarodowego Programu Sondaży Społecznych ISSP 2015.

Keywords

EN

Item response theory; Latent class models; Polytomous responses

PL

Analiza klas ukrytych; Podejście modelowe w taksonomii; Teoria IRT

• Publisher: Uniwersytet Ekonomiczny w Katowicach
• Journal: Studia Ekonomiczne
• Year: 2017
• Volume: 344
• Pages: 25-38

Contributors

author

Genge Ewa

• University of Economics in Katowice. Faculty of Finance and Insurance. Department of Economic and Financial Analysis

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Identifiers

ISSN

2083-8611