Methods (9.1 Lecture) & (Ch. 2)

Question 1

descriptive study

Answer 1

discusses specific proceeding and observes phenomenon

Question 2

correlational study

Answer 2

how a change in one variable relates to another

Question 3

how to measure correlation

Answer 3

r –> higher |r| = higher correlation

Question 4

experimental study

Answer 4

manipulated one variable (independent variable)
to determine causation

Question 5

understanding p-value

Answer 5

p-value: probability that we would get difference between the two groups (lower the p-value, the greater the statistical significance of the observed difference)
if p<.05 reject null hypothesis
if p>.05 fail to reject null hypothesis