Psychology 2-3

Question 1

Statistics-

Answer 1

The branch of mathematics concerned with summarizing and making meaningful inferences from collections of data

Question 2

Descriptive Statistics-

Answer 2

The listing and summarizing of data in a practical, efficient way

Question 3

Frequency Distribution-

Answer 3

An arrangement of data that indicates how often particular score or observation occurs

Question 4

Normal Curve-

Answer 4

A graph frequency distribution shaped like a symmetrical, bell-shaped curve; a graph of normally distributed data

Question 5

Central Tendency-

Answer 5

A number that describes something about the “average” score of a distribution

Question 6

Variability-

Answer 6

A measure of difference, or spread of data

Question 7

Standard Deviation-

Answer 7

A measure of variability that describes an average distance of every score of the mean

Question 8

Correlation Coefficient-

Answer 8

Describes the direction and strength of the relationship between two sets of variables

Question 9

Inferential Statistics-

Answer 9

Numerical methods used to determine whether research data support a hypothesis or whether results were due to chance