PSY 1101 Chapter 1: PSY1101 Chapter 1.docx

• School: University of Ottawa
• Department: Psychology
• Course: PSY 1101
• Professor: Kenneth Campbell

Document Summary

Measures of central tendency: summarizes data in a single score, mode: the most frequently occurring score, mean: average of the distribution, median: the middle score in a distribution (half above, half below, always note which measure of central tendency is being reported. Measures of variation: helps to know how similar or diverse the scores are, range: the difference between the highest and lowest scores, standard deviation: a computed measure of how much scores vary around the mean score (more useful standard for measuring how scores deviate from one another, normal curve: a symmetrical, bell shaped curve that describes the distribution of many types of date; most scores fall near the mean, statistical significance: a statistical statement of how likely it is that an obtained result occurred by change, statistical significance indicates the likelihood that a result will happen by change, this doesn"t say anything about the importance of the result.