Unit 1 21-30

Question 1

Independent variable

Answer 1

The factor that is manipulated in an experiment; the variable for whose effect is being studied

Question 2

Dependent variable

Answer 2

The outcome that is measured in an experiment; the variable that may change when the IV is manipulated

Question 3

Self report bias

Answer 3

Bias when people report their behavior inaccurately

Question 4

Sampling bias

Answer 4

A flawed sampling process that produces an unrepresentative sample

Question 5

Random sample

Answer 5

A sample that fairly represents a population because each member has an equal chance of inclusion

Question 6

Correlation

Answer 6

A measure of the extent to which two factors vary together, and thus of how well either factor predicts the other

Question 7

Correlation coefficient

Answer 7

A statistical index of the relationship between two things (from -1 to +1)

Question 8

Descriptive stats

Answer 8

Numerical data used to measure and describe characteristics of groups. Includes measures of central tendency and measures of variation

Question 9

Range

Answer 9

The difference between the highest and lowest scores in a distribution