Table 4. .

Backward Stepwise Discriminant Model^a

Step	Included Variable	Fisher Function Coefficient	r 2	% of Correct Prediction		Wilks λb			P Value
				Index Ankle-Sprain Group	Control Group	λ	df 1c	df 2d
1	Response to inversion perturbation	3.67	19.2	74	73	0.817	6	98	.004
	Eversion peak power (30°/s)	4.76
	Dorsiflexion range of motion	5.90
	Timed stair test	8.00
	No. of foot lifts during single-legged stance with eyes closed	8.74
	Star Excursion Balance Test	9.82
2	Eversion peak power (30°/s)	4.76	18.4	70	76	0.824	5	98	.002
	Dorsiflexion range of motion	5.90
	Timed stair test	8.00
	No. of foot lifts during single-legged stance with eyes closed	8.74
	Star Excursion Balance Test	9.82
3	Dorsiflexion range of motion	5.90	17.7	73	73	0.832	4	98	.001
	Timed stair test	8.00
	No. of foot lifts during single-legged stance with eyes closed	8.74
	Star Excursion Balance Test	9.82
4	Timed stair test	8.00	16.9	70	68	0.840	3	98	.001
	No. of foot lifts during single-legged stance with eyes closed	8.74
	Star Excursion Balance Test	9.82
5	No. of foot lifts during single-legged stance with eyes closed	8.74	15.2	63	69	0.855	2	98	.001
	Star Excursion Balance Test	9.82

Abbreviation: df, degrees of freedom.

^aAt each step, the variable with the lowest Fisher function coefficient and highest Wilks λ was excluded from the model.

^bWilks λ indicates the significance of the discriminant model. The 2 predictors that add discriminative power to the discriminant model are different at P = .01.

^cThe effect degrees of freedom for the given function are based on the number of groups present in the categorical variable and the number of continuous discriminant variables.

^dThe error degrees of freedom for the given function are based on the number of groups present in the categorical variable, the number of continuous discriminant variables, and the number of observations in the analysis.