POINT 2
Describe the Type of Correlation Pooja Found
Pooja found a positive correlation between weekly practice time and playing test score.
Part B
POINT 3
Distributed Practice
Musicians who distribute (spread out) their practice time are more likely to improve than musicians who
use massed practice.
POINT 4
Experimenter Bias
A problem in Pooja’s study was experimenter bias—the tendency of researchers to inadvertently
influence their work in such a way as to confirm their hypotheses. If Pooja is aware of how much practice
time the students have reported as she listens to their playing tests, she may be subconsciously inclined to
interpret what she hears so as to support her predictions.
POINT 5
Social Desirability