CAT Creativity and Design Maximization Scoring
The coefficient alpha inter-rater reliability was 0.962 for the buoy creativity and 0.901 for design
maximization. These ratings are slightly higher than levels reported in most of the research using
the CAT. This could be due to our years of working on the Build-A-Buoy Challenge together,
which might have caused us to form similar general opinions regarding the creative products and
design maximization that we had seen in the past, thus influencing our scores for this research.
Treatment Groups
Group test tank session information is presented in Table 2. Groups 1 and 3 are
considered treatment groups in this study due to the use of inquiry-based questioning
during the activity.
Group 1 began with a fairly creative design of two large PVC squares that joined at the
middle, which scored a 3.00 (Fig. 3). They were able to place 30 individual golf balls
inside a Frisbee located in the middle of one of the PVC squares, which led to a design
maximization score of 2.25.