The Impact of Arithmetic Skills on Mastery of Quantitative Analysis

Table 6

Model development versus items.

(a)  

Regression statistics
Multiple R	0.4817
R Square	0.2320
Adjusted R square	0.2046
Standard error	22.5342
Observations	88.0000

(b)  

ANOVA
	df	SS	MS	F	Significance F
Regression	3.0000	12886.4152	4295.4717	8.4592	0.0001
Residual	84.0000	42654.2098	507.7882
Total	87.0000	55540.6250

(c)  

	Coefficients	Standard error	t stat	P value
Intercept	14.0351	11.7183	1.1977	0.2344
Arith Manip	1.0878	0.2741	3.9689	0.0002
Algebra	0.8736	0.2504	3.4886	0.0008
ManipXAlg	−0.0153	0.0047	−3.2345	0.0017