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Table 4 At each cluster position, the average success percentage for responses where (i) SB = 0, (ii) SB = 1 and (iii) difference in success percentages

From: Student test-taking effort in low-stakes assessments: evidence from the English version of the PISA 2015 science test

Country Cluster position Average percentage of success:
RT below the threshold (SB = 0) RT above the threshold (SB = 1) Difference (above-below)
\(\widehat{\mu }\) SE \(\widehat{\mu }\) SE \(\widehat{d}\) SE
AUS 1 18.12 0.98 53.51 0.46 35.38 1.07
2 16.49 0.76 52.58 0.47 36.09 0.91
3 16.71 0.87 53.34 0.44 36.64 0.94
4 13.67 0.58 51.40 0.53 37.73 0.64
CAN 1 16.76 1.12 56.60 0.53 39.85 1.20
2 16.03 0.74 55.28 0.57 39.25 0.90
3 16.59 0.92 55.56 0.59 38.97 1.18
4 15.73 0.64 54.92 0.49 39.19 0.65
GBR 1 15.28 0.86 54.22 0.58 38.94 0.98
2 14.99 0.69 54.15 0.63 39.15 0.82
3 15.93 0.84 54.16 0.67 38.23 1.07
4 15.11 0.63 53.00 0.69 37.89 0.86
IRL 1 15.58 0.93 51.30 0.54 35.72 0.98
2 12.65 0.75 50.95 0.56 38.30 0.85
3 13.82 0.68 52.35 0.52 38.53 0.77
4 13.57 0.78 50.45 0.56 36.89 0.92
NZL 1 14.43 1.05 55.89 0.71 41.47 1.20
2 12.52 0.68 53.44 0.76 40.92 0.93
3 13.64 1.08 53.41 0.68 39.77 1.32
4 11.87 0.76 51.12 0.71 39.25 1.07
USA 1 10.81 1.01 50.17 0.71 39.37 1.26
2 14.18 0.83 49.79 0.72 35.60 0.93
3 15.37 0.75 49.81 0.80 34.43 1.01
4 17.15 0.87 49.12 0.81 31.96 0.98
  1. Omitted and not-reached items were recoded as incorrect answers; if an item had a polytomous score, the maximum score was coded as correct and partial scores as incorrect