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. Author manuscript; available in PMC: 2015 Aug 1.
Published in final edited form as: Optom Vis Sci. 2014 Aug;91(8):1000–1011. doi: 10.1097/OPX.0000000000000314

Table 3.

Results from stepwise multiple linear regression analysis: Vision measures, self-reported difficulty with gaze perception, and (horizontal) gaze cone width as predictors of judgment variability on the mutual gaze perception task in the horizontal plane (n = 22).

Prediction Model

Unstandarized

Dependent Variable Independent Variable B SE β t p-value sr2(unique)a
SD in Straight Ahead Gaze Direction (Constant) 11.70 2.52 4.64 0.00
Contrast Sensitivity −5.86 1.48 −0.58 −3.95 0.00 0.31
Difficulty Q4: If someone looks at you 1.00 0.37 0.42 2.88 0.01 0.17

SD in Gaze Cone Width (Constant) 12.00 2.14 5.60 0.00
Gaze Cone Width 0.46 0.03 0.89 16.23 0.00 0.76
Contrast Sensitivity −5.81 1.37 −0.23 −4.24 0.00 0.08

Note. SD = variability (i.e., judgment uncertainty) in measure from the gaze perception task. Excludes all non-significant variables. Both backward and forward stepping models yielded identical results.

a

sr2 = squared semipartial correlation = proportion of the unique variance contributed by each independent variable