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Table 2 Item difficulties, and weighted (infit) and unweighted (outfit) MNSQ fit statistics of the GAENE

From: Measuring evolution acceptance using the GAENE: influences of gender, race, degree-plan, and instruction

Item Item difficulty Unweighted MNSQ (outfit MNSQ) Weighted MNSQ (infit MNSQ)
Pre-course Post-course Pre-course Post-course
GAENE 2 − 0.25 0.97 0.84 1.00 0.89
GAENE 3 0.04 0.78 0.68 0.83 0.74
GAENE 4 − 0.30 1.12 1.02 1.10 0.98
GAENE 5 − 0.47 0.77 0.73 0.80 0.72
GAENE 6 − 0.91 0.83 0.60 0.93 0.79
GAENE 7 1.01 1.23 1.38 1.21 1.32
GAENE 8 − 1.12 0.85 0.78 0.89 0.90
GAENE 9 1.24 1.23 1.25 1.22 1.25
GAENE 10 − 0.22 0.86 0.74 0.88 0.80
GAENE 11 0.16 0.80 0.82 0.84 0.88
GAENE 12 0.30 0.84 0.73 0.86 0.78
GAENE 13 1.10 1.51 2.24 1.46 2.10
GAENE 14 − 0.57 0.62 0.61 0.70 0.73
  1. Unweighted MNSQ is more sensitive to outliers, but weighted MNSQ has more of an impact on instrument functioning. Underlined numbers indicate those outside of the most conservative range (0.7–1.3) but within the less conservative range (0.5–1.5) of MNSQ values. Italic numbers indicate those outside of any acceptable MNSQ range and are considered to have poor fit