Abstract (eng)
Interest research continues to play an important role in physics didactics. Häussler et al. (1998) for example made a subdivision into types of interests that is heavily based on gender-specific arguments. In this master's thesis, starting with the concepts of the self-concept according to Shavelson et al. (1976), Marsh et al. (1990) and Lohaus (2019) a clustering variable with the so-called physics-related self-concept is selected that can describe self-perception and knowledge about oneself as gender-neutrally as possible. For empirical research on identity, a similar but more extensive term, English-language items from Hazari et al. (2010) and Kalender et al. (2019) are available, which represent the basis for the development and evaluation of German-language items during this research. To make a suitable selection from a wide variety of translation options, online interviews were initially carried out using the method of thinking aloud (Sandmann, 2014) with 10 students. The findings of this pilot were incorporated into the further development of the items, which were finally processed in an online survey of 95 students from at least one high school in Lower Austria and one middle school in Vienna. The data collected was evaluated by means of a Rasch analysis using the Winsteps software. With the help of the guidelines for the Rating Scale Model according to Linacre (1999), as described, for example, by Brann et al. (2020) were used, based on 56 possible items, various item sets could be determined that adequately meet the requirements for reliability and validity and thus represent possible gender-neutral test scales for the physics-related self-concept.