Psychology 1000 Chapter Notes -Null Hypothesis, Normal Distribution, Factor Analysis

• School: Western University
• Department: Psychology
• Course: Psychology 1000
• Professor: Wolfe/ Quinlan

Document Summary

Descriptive statistics: descriptive statistics: summarize and describe the characteristics of a set of scores, frequency distribution: shows how many participants received each score, histogram: graph of frequency distribution. Normal curve: normal curve: symmetrical bell-shaped curve that represents a theoretical distribution of scores in a population. The correlational coefficient: pearson product-moment correlational coefficient is a statistic that reflects the direction and strength of the relation between two variables. Factor analysis: factor analysis reduces a large number of correlations among many measures to a smaller number of clusters, with each cluster containing variables that correlate highly with one another.