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Table 4 Results comparing subtests 1 and 2 versus 3

From: Cumulative assessment: strategic choices to influence students’ study effort

Module Group Students T1+2 T3 Absolute difference T-test
   n Mean Mean |Δ| t p
1 Initial low scorers 133 54.30 55.19 |0.89| −3.24 .00*
  Initial high scorers 124 75.04 71.16 |-3.88|
2 Initial low scorers 107 51.05 53.50 |2.45| .97 .33
  Initial high scorers 110 74.02 75.57 |1.54|
3 Initial low scorers 106 55.08 62.23 |7.16| 7.00 .00*
  Initial high scorers 101 69.56 71.15 |1.58|
4 Initial low scorers 87 46.71 69.04 |22.32| -.02 .98
  Initial high scorers 83 58.93 81.27 |22.35|   
  1. For initial low and high scorers in four modules: mean test scores and absolute difference and t-tests comparing their absolute mean difference in test scores between the combined subtests 1 and 2 (T1+2) and subtest 3 (T3).
  2. * = significant at the α = 0.05 level.