PSYC 2360 Lecture Notes - Lecture 10: Pearson Product-Moment Correlation Coefficient, Frequency Distribution, Descriptive Statistics

• School: University of Guelph
• Department: Psychology
• Course: PSYC 2360
• Professor: Harjinder Gill

Document Summary

The data collected must be transformed to be meaningful using: Surveys and sampling: frequency distribution or, descriptive statistics. Table indicating how many individuals in the sample fall into each category. Grouped frequency distribution: combine adjacent values into a set of categories and examine the frequencies of each of the categories. Histogram: a visual display of a grouped frequency distribution (bars touching= continuous or grouped, not touching= nominal or categorical) Stem and leaf: graphical representation of raw data so that the original data is still visible. Distribution is described in terms of its: central tendency and, dispersion (spread) Central tendency is the point in the distribution around which the data are centered: mean, median (best for when there are outliers, mode. Dispersion is the extent to which the scores are spread away from the central tendency: variance, standard deviation, range, normal distribution is bell shaped.