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Table 5 Cognitive achievement of the students’ sample as a whole and model understanding items only

From: Self-evaluative Scientific Modeling in an Outreach Gene Technology Laboratory

Items Friedman test Wilcoxon signed-rank test
     T0/T1   T0/T2   T1/T2  
  Chi-square df p Z p Z p Z p
Model-related knowledge 275.65 2 < .001 − 12.98 < .001 − 8.64 < .001 − 9.92 < .001
Overall knowledge 259.03 2 < .001 − 12.95 < .001 − 9.61 < .001 − 9.08 < .001