In a different study, researchers investigated the effect of two drugs on patien
ID: 3226552 • Letter: I
Question
In a different study, researchers investigated the effect of two drugs on patient reported quality of life (higher scores indicate higher quality.) Participants were randomized to receive one, or both, of the two drugs or a placebo. They also controlled tor baseline quality or life before initiation of treatment. The ANOVA table for the above analyses is given below. The mean in the placebo group is the given reference for comparisons (so Treatment A and Treatment B are dummy variables). Based on the table what can you conclude about the reported quality of life for the two new drugs?Explanation / Answer
Q-1
Treatment A has significant impact on quality of life as F(1,105)=4.81,p=0.0305<0..05
Treatment B has significant impact on quality of life as F(1,105)=4.80,p=0.0308<0..05
Interaction has significant impact on quality of life as F(1,105)=4.10,p=0.0455<0..05
Baseline has significant impact on quality of life as F(1,105)=42.81,p<0.001<0..05
Q-2
When the baseline resported aulity of life explain the curren quality of life and is confounding variable