Correlation Coefficient

Sample Statistic

Descriptive Statistics in Experimental Research

Descriptive Statistics in Non-Experimental Research

Inferential Statistics

Understanding Descriptive Statistics

Scatterplot

Tables in Research Reports

Tables in Research Reports

Measures of Central Tendency

Measures of Dispersion

Forms of Statistical Relationship

Cohen's $d$

Mean

Standard Deviation

Bar Graph

Line Graph

What is the primary purpose of using descriptive statistics in psychological research?

Match each category of descriptive statistics with the specific goal it accomplishes when a researcher is summarizing their data.

A researcher records the number of errors made by five participants on a memory task: 3, 8, 2, 5, and 7. Based on these scores, the range for this sample is ____.

A researcher finds that a distribution of scores on a memory task is negatively skewed, meaning there are a few extremely low scores that pull the tail of the distribution to the left. Arrange the following measures of central tendency in order from the lowest numerical value to the highest numerical value based on this distribution's shape.