PSYC 2F23 Chapter Notes - Chapter 4-7: Sampling Error, Statistic, Sampling Distribution
Document Summary
Describes distribution; tells whether the scores are clustered close together. Variability: provides a quantitative measure of the differences between scores in a distribution and describes the degree to which the scores are spread out or clustered together or are spread out distribution. Range: the distance covered by the scores in a distribution from smallest to largest score and lowest score over a large distance. Measures how well an individual score/group of scores represents the entire. Range ignores the other scores in a distribution. When the scores are measurements of a continuous variable: Range= url for xmax lrl for xmin. When the scores are all whole numbers, range is obtained by: 45-50= -5 (the sign shows whether the score is located above. Step 1) determine the deviation: distance from the mean for each individual score or below the mean) Step 2) calculate the mean of the deviation scores.
