Table 5: Tool recognition versus items.
(a)

Regression statistics

Multiple R 0.4294
R Square0.1844
Adjusted R square0.1553
Standard Error13.3159
Observations88.0000

(b)

ANOVA
dfSSMSFSignificance F

Regression3.00003367.24301122.41436.33020.0006
Residual84.000014894.2020177.3119

Total87.000018261.4450

(c)

CoefficientsStandard errort statP value

Intercept46.51736.92456.71780.0000
Arith Manip0.40700.16202.51310.0139
Algebra0.39980.14802.70210.0083
ManipXAlg−0.00530.0028−1.89220.0619