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Table 3 Conceptual Test Results (pre-, post- and delayed post-tests) for class and Rachel

From: ‘Even though it might take me a while, in the end, I understand it’: a longitudinal case study of interactions between a conceptual change strategy and student motivation, interest and confidence

Conceptual Test Participant Pre-test (%) Post-test (%) Delayed post-test (%) Normalised Gain <g>
TCE (thermal physics) (Rachel) Rachel 38.5 69.2 61.5 0.50
Class mean (SD) 25.3 (10.5) 45.7 (15.1) 47.7 (17.7) 0.27
EPSE Set 2 (electricity) Rachel 30.0 70.0   0.50
Class mean (SD) 27.0 (21.6) 49.6 (31.1)   0.31
FCI (Newton’s laws) Rachel 6.9 24.1 37.9 0.19
Class mean (SD) 26.3 (10.2) 41.5 (14.5) 43.3 (15.7) 0.21
SRG (genetics) Rachel 27.3 54.5   0.38
Class mean (SD) 20.5 (17.4) 54.9 (18.8)   0.43
CINS (natural selection) Rachel 75.0 85.0   0.40
Class mean (SD) 43.3 (14.5) 60.2 (18.5)   0.42