Psych Notes, Ch. 1
Subject:
Psychology [1]
Statistical Reasoning After gathering date, then having organized, summarized, and made inferences from it, using statistics Describing Data Must organize, one ex is using a graph or figure Measure of Central Tendency Summarize data using some measure of control tendency, a single score that represents a whole set of scores Mode: most frequently occurring score or scores Median: the midpoint- 50th percentile Mean: arithmetic average of a distribution, add the scores then divide by the number of scores Measures of Variation Variation, in the data how similar or diverse the scores are Range: the gap between the lowest and highest scores Standard Deviation: useful standard for measuring, a computed measure of how much scores vary around the mean score Making Inferences