Cyberchondria and its measurement. The Polish adaptation and psychometric properties of the Cyberchondria Severity Scale CSS-PL

Aim. The aim of this paper is a presentation of the adaptation process of the Cyberchondria Severity Scale (SCC) to measure cyberchondria and verification of reliability and construct validities of the test in the Polish population. Methods. The study included 380 participants (203 women and 177 men) aged 19-68 (M = 26.5; SD = 11.1). The CSS-PL was used to measure cyberchondria, the Short Health Anxiety Inventory (SHAT) for measuring hypochondria, and the Dimensional Obsessive-Compulsive Scale (DOCS) to verify obsessive-compulsive tendencies. Results. Four-factor structure of cyberchondria measured with the CSS-PL was supported. Internal consistency indices of the CSS-PL were between 0.87 and 0.95, test-retest reliability results were 0.58-0.76. This study demonstrated construct validity of the CSS-PL via its correlations with health anxiety (r = 0.31-0.56) and obsessive-compulsive symptoms (r= 0.17-0.48). Conclusions: The CSS-PL is an initial standardized version of an instrument for measuring cyberchondria and meets the psychometric criteria of reliability and validity for psychological testing tools. The CSS-PL may be used both in diagnostic and scientific research.