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Abstract Title: Which instrument to critically select (among so many)
Abstract: A plethora of measurement instruments in science and education are used to measure even the same construct in the cognitive or affective domains of learners. The dilemma occurs when the investigator is faced with limited resources, or is sensible to learners' fatigue, cognitive load or attrition. This leads the investigator to choose one instrument or another to measure the construct of interest. This paper presents the reasons for choosing a specific instrument among many competing ones. Based on another paper submitted to PERC 2010, the following reasons of selection are compared: (a) number of items in each instrument, (b) number of dimensions (or factors) each instrument is composed of, (c) targeted population, (d) internal consistency (e) reliability, and (f) popularity of use. The paper provides an examples of comparing four different instruments that aim at measuring learners' epistemological beliefs, and shows how one instrument is critically selected.
Abstract Type: Contributed Poster

Author/Organizer Information

Primary Contact: Ahmed Ibrahim
McGill University
3700 McTavish street
Montreal, Canada H3C1C4