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Table 2 Scales constructed from the HAM-Nat item pool

From: Dimensionality and predictive validity of the HAM-Nat, a test of natural sciences for medical school admission

Scale Description Items Internal consistency1sample A Internal consistency1sample B
HAM-Nat-raw Sum of the total item pool 52 .87 .85
HAM-Nat-uni Unidimensional scale 33 .84 .81
HAM-Nat-biology Subject-specific scale 11 .75 .73
HAM-Nat-physics Subject-specific scale 13 .75 .58
HAM-Nat-chemistry Subject-specific scale 14 .70 .69
HAM-Nat-BPC Unweighted sum of subject-specific scales 38 .85 .81
HAM-Nat-BPCw Weighted sum of subject-specific scales with weights derived from sample A (0.45, 0.43, 0.15). 38 .85 .81
HAM-Nat-corrmax Scale composed of the 33 items, most highly correlated with SUCCESS in sample A 33 .83 .79
  1. 1 Cronbach's alpha