The Normal Curve:
-68% - +1 to -1 standard deviations from the mean.
-95% - +2 to -2 standard deviations from the mean.
-99% - +3 to -3 standard deviations from the mean.
Z-Score or Standard Score:
(Raw score minus the mean divided by
-inferences about a population based on results from a sample.
Population parameters: characteristics of a population
-Simple random sample: list of all elements/cases and a system for selecting
cases that will guarante
Bivariate Tabular Analysis Crosstabs:
3. Independent and Dependent Variables (independent-cause, dependenteffect).
Constructing a Bivariate Table:
Independent variables s