Everyday, students and teachers had to fill out several questionnaires, but spending no more than 20 minutes altogether per day on it, except for the Inventar Sozialer Kompetenzen – ISK (Kanning 2009, see chapter III How does Design Thinking contribute in developing 21st century skills?), which was filled out by the students in their regular class settings before and after the workshop. To see what
impact the workshop had – if any – on the social skills of students, pre-post comparisons (that is: gain-scores) were calculated. In sum, students of the Design Thinking condition profit more than students of the Dewey-condition. Even though not all differences in gain-scores are large enough to reach statistical significance, the picture is pretty consistent: In an eighteen out of 21 scale the gain-scores are more favourable for Design Thinkers. In particular, the gain-scores differ with statistical significance (p < .05) on the following scales, favouring Design Thinking: SelfExpression, Direct Self-Attention, Self-Monitoring and Reflexibility. Close to significant (p < .1) are differences of gain-scores on the following scales: Assertiveness, Flexibility of Action, Indirect Self Attention and Person Perception