# AP PSYCHOLOGY

## RESEARCH METHODS THINKING CRITICALLY WITH PSYCHOLOGICAL SCIENCE

### CORRELATION AND EXPERIMENTATION

 Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which shows correlation coefficient shows the strongest correlation?
 A -1.24 B 1.37 C 0.75 D -0.22
Explanation:

Detailed explanation-1: -The correlation coefficients absolute value tells us about the strength of the relationship and the direction of the relationship. The values here are the strongest at-0.75. The three say 0.75 75 is greater than 750.72 as an absolute value and the correlation coefficients indicates a stronger relationship.

Detailed explanation-2: -As a rule of thumb, a correlation greater than 0.75 is considered to be a “strong” correlation between two variables.

Detailed explanation-3: -If is between 0.85 and 1, there is a strong correlation. If is between 0.5 and 0.85, there is a moderate correlation. If is between 0.1 and 0.5, there is a weak correlation.

Detailed explanation-4: -Correlation coefficients whose magnitude are between 0.7 and 0.9 indicate variables which can be considered highly correlated. Correlation coefficients whose magnitude are between 0.5 and 0.7 indicate variables which can be considered moderately correlated.

Detailed explanation-5: -Values between 0.7 and 1.0 (−0.7 and −1.0) indicate a strong positive (negative) linear relationship through a firm linear rule.

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