Suggestions(1)
Exact(3)
Internal consistency (Cronbach's α) was 0.66 for the tutorial version and 0.71 for the workbook version.
For this comparison, we focused on the adaptive mutation misconception, because we had specifically targeted this misconception as part of our revisions for the tutorial version.
In our first phase of revisions for the tutorial version (tested in study 1), we expanded the mutation section of the module to include five multiple-choice questions with immediate and specific feedback (formerly there were three open-response with no feedback).
Similar(57)
Since the introduction of the tutorial version, most instructors who adopt the module for use in their courses choose to use the tutorial version, but the workbook version continues to be used in some courses.
Fig. 3 Standardized misconception counts calculated from multiple-choice items for students using the tutorial version of Darwinian Snails on pre and post-tests in study 1.
In other words, when we accounted for the clustering of students in classes, there was not a significant difference in performance for students who used the tutorial version (Mean = 73.12 ± 20.61) and those who used the workbook version (Mean = 68.65 ± 22.85) on the summative assessment.
There were additional changes made after classes used the tutorial version for one semester (after study 1 but prior to study 2).
Students in courses that used the workbook version chose a distractor expressing the Adaptive mutation misconception more frequently than those using the tutorial version; the standardized score for this misconception was significantly higher for the workbook students (Mean = 0.32 ± 0.32; Mdn = 0.33) than the tutorial students (Mean = 0.23 ± 0.28; Mdn = 0; Z = 5.98, p < 0.0001), r = 0.12.
In particular, following the design changes made to the tutorial version, students appeared to overcome the Adaptive mutation misconception; evidence for this had been lacking for the previous workbook version.
In the final dataset discussed in this study (study 2), the tutorial version no longer included the Extension Sect.
We found evidence for a decrease in the use of the Adaptive mutation misconception for students using the revised tutorial version.
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