Table 3. Exploratory factor analysis results for simple shoulder test’s validations to Brazilian-Portuguese.

		1 Factor Solution	3 Factors Solution
	EV
Q1 - Is your shoulder comfortable with your arm at rest byyour side?	3.32	0.27			0.40
Q2 - Does your shoulder allow you to sleep comfortably?	1.61	0.18			0.37
Q3 - Can you reach the small of your back to tuck in yourshirt with your hand?	1.30	0.56			0.57
Q4 - Can you place your hand behind your head with theelbow straight out to the side?	1.07	0.48			0.43
Q5 - Can you place a coin on a shelf at the level of your shoulder without bending your elbow?	0.90	0.60	0.61
Q6 - Can you lift one pound (a full pint container) to thelevel of your shoulder without bending your elbow?	0.81	0.57	0.96
Q7 - Can you lift eight pounds (a full gallon container) tothe level of your shoulder without bending your elbow?	0.73	0.52	0.39
Q8 - Can you carry twenty pounds at your side with theaffected extremity?	0.59	0.54		0.85
Q9 - Do you think you can toss a softball under-handtwenty yards with the affected extremity?	0.51	0.25	0.48
Q10 - Do you think you can toss a softball over-handtwenty yards with the affected extremity?	0.47	0.61		0.70
Q11 - Can you wash the back of your opposite shoulderwith the affected extremity?	0.34	0.41	0.41
Q12 - Would your shoulder allow you to work full-time atyour regular job?	0.29	0.33		0.35
Variance Explained		0.22	0.15	0.28	0.38
RMSE		0.08	0.04

EV = Eigen Values; RMSE = Root mean square error.