Ch 2

Question 1

What is construct validity?

Answer 1

How well a test measures (your dependant variable truly measures what you meant it to measure)

Question 2

True or False, correlation coefficient r has a limited range

Answer 2

True (from -1 to +1)

Question 3

What is a confounding variable?

Answer 3

A variable that changes alongside the independent variable

Question 4

What are the five principles of “good science”?

Answer 4

Materialism, universalism, communality, disinterestedness, organized skepticism

Question 5

How do you operationalize a conceptual variable?

Answer 5

Take a conceptual variable, turn it into a measured variable using a rational unit of measurement

Question 6

What is Cohen’s d? What is important about it?

Answer 6

= a measure of how important a different (deviation) is, important because it helps to determine whether differences between two groups are meaningful