' Flashcards
Descriptive statistics
The listing and summarizing of data in practical, efficient way.
Frequency distribution
An arrangement of data that indicates how often a particular score or observation occurs.
Normal curve
A graph frequency distribution shaped like a symmetrical, bells shaped curve a graph of normally distributed data.
Central tendency
A number that describes something about the “average” score of a distribution.
Variance
A measure of difference, or spread of data.
Standard deviation
A measure of variability that describes an average distance of every score from the mean.
Correlation coefficient
Describes the direction and strength of the relationship between 2 sets of variables.
Inferential statistics
Numerical methods used to determine whether research data support a hypothesis or whether results were due to chance.
Statistics
The branch of mathematics concerned with summarizing and making meaningful inferences from collections of data.