PSYC 100 Lecture Notes - Standard Deviation, Factor Analysis, Descriptive Statistics

• School: Simon Fraser University
• Department: Psychology
• Course: PSYC 100
• Professor: Jaime Palmer

Document Summary

Descriptive statistics: describe the characteristics of the set. Mean: arithmetic average of a set of scores. Median: the point that divides the distribution in half when the individual scored are arranged in order from lowest to highest. Measures of variability: provide info about the spread of scores in a distribution. Range: difference between the highest and the lowest score. Variance: average of the squared deviation scores about the mean. Standard deviation (sd): is the square toot of the variance. Normal curve: symmetrical bell-shaped curve that represents a theoretical distribution of scores in the population.