A group of researchers studied functional impairment scores in a group of 10 patients before and after a new rehabilitation intervention. The researchers set the alpha at 0.05 which meant that the critical t value would be 2.26 (9 df). Data analysis showed t(9)=2.84, p=.045. What do these results mean
a. There is insufficient information to determine if a significant difference exists between scores.
b. There was not a statistically significant difference between the functional impairment scores obtained before and after the intervention.
c. There was a statistically significant difference between the functional impairment scores obtained before and after the intervention.
Answer: c. There was a statistically significant difference between the functional impairment scores obtained before and after the intervention.
You might also like to view...
Find the indicated matrix.Let C = 
and D = 
. Find C - 3D.
A. 
B. 
C. 
D. 
Write the ratio of corresponding sides for the similar triangles and reduce the ratio to lowest terms.
A. 
= 
= 
B. 
= 
= 
C. 
= 
= 
Write out the terms of the series.
A. 3 + 4 + 5 + 6 B. 3 + 4 + 5 + 6 + ... C. 6 + 7 + 8 + 9 D. 2 + 3 + 4 + 5
Evaluate.100-1/2
A. 10
B. 20
C. 
D. 