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Psych Notes Appendix.docx

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Department
Psychology
Course
Psychology 1000
Professor
Dr.Mike
Semester
Spring

Description
1 Psych Appendix Descriptive Statistics  Descriptive statistics  ▯summarize and describe the characteristics of a set (also  called a distribution) or scores  Frequency Distribution  ▯shows how many participants received each score. Tells  us at a glance about certain characteristics of the data.  Histogram  ▯a graph of frequency distribution Measures of Central Tendency  Measures of central tendency  ▯describe a distribution in terms of a single statistic  that is in some way “typical” of the sample as a whole.  Mode  ▯most frequently occurring score in a distribution  Mean  ▯most commonly used measure that represents the arithmetic average of a  set of scores  Median  ▯the point that divides the distribution in half when the individual scores  are arranged in order from lowest to highest Measures of Variability  Measures of variability  ▯provide information about the spread of scores in a  distribution  Range  ▯the difference between the highest and the lowest score  Variance  ▯the average of the squared deviation  Stan
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