Investigation of Students’ Alternative Conceptions of Terms and Processes of Gene Technology

Table 9

Medians and scientific conception sum scores in the subsample (𝑛=25) who took part in our constructivist teaching sequence approach over all three test schedules.

Score	Test date
	Before test	After test	Retention test
Median (grouped)	3.2	4.2	3.6
25th Percentile	3.0	3.0	3.0
75th Percentile	4.0	5.0	5.0