Psychometric properties of measurements obtained with the Marlowe–Crowne Social Desirability Scale in an Icelandic probability based Internet sample |
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| Affiliation: | 1. University of Iceland, Department of Psychology, Aragata 14, 101 Reykjavik, Iceland;2. University of Konstanz, Department of Psychology, Fach 31, 78457 Konstanz, Germany;3. Behavioural Research Lab, Faculty of Business and Law, University of the West of England, Bristol, United Kingdom;4. University of Iceland, Department of Psychology, Sturlugata 3, 101 Reykjavík, Iceland;1. Max Planck Institute of Microstructure Physics, Weinberg 2, 06120 Halle, Germany;2. University of Konstanz, Universitätsstr. 10, 78464 Konstanz, Germany;1. Pediatric Otolaryngology, Head and Neck Surgery Department, Necker Enfants Malades Hospital, 149 rue de Sèvres, 75015 Paris, France;2. INSERM U955 Team 13, IMRB, 8 rue Du Général Sarrail, 94010 Créteil, France;3. Paris V René Descartes University, Paris, France;4. Paris-Est University, Créteil, France;5. CNRS, ERL 7240, 94010 Créteil, France;1. Department of Psychiatry and Biobehavioral Sciences, University of California, Los Angeles, CA (DKW, SRO);2. Department of Psychology, Loma Linda University, Loma Linda, CA (AEA) |
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| Abstract: | Internet surveys have become a very popular research tool. Relatively little attention has, however, been devoted to the possible changes in psychometric properties when measurements are obtained with Internet surveys. The Marlowe–Crowne Social Desirability Scale (MCSDS) is the most widely used instrument for measuring the tendency to respond in a socially desirable way and is often used to validate other measures. The purpose of the current research is to evaluate the dimensionality and reliability of measurements obtained with the MCSDS and short forms of the scale in an Internet sample of the general public in Iceland. An e-mail invitation was sent to a sample of 1200 panel members drawn from the Social Science Research Institute (SSRI) probability based panel, of those 536 participants completed all items on the MCSDS. Reliability estimates were in line with results from previous studies (α = .81 for the MCSDS data and α ranging from .59 to .75 for short forms). Using confirmatory factor analysis, a good fit was obtained for a one-factor model of measurements obtained with the MCSDS and its short forms (apart from significant chi square values in all cases but one), which generally supports the assumption of unidimensionality. |
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| Keywords: | Marlowe–Crowne Social Desirability Scale Internet administration Psychometric properties Short forms Unidimensionality |
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