A Shift from Poorly Educated to Better-Educated Cocaine Abusers Occurred

question 108

True/False

A shift from poorly educated to better-educated cocaine abusers occurred in the 1980s.

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Definitions:

Kruskal-Wallis Test

A nonparametric statistical test used to compare three or more groups on a continuous or ordinal outcome without assuming a normal distribution among the groups.

Crawling Ages

Typically refers to the developmental period in human infants when they start to move about on their hands and knees, usually between 6 to 10 months of age.

Null Hypothesis

A hypothesis that suggests there is no statistical significance between the two observed phenomena.

H Statistic

A measure of statistical significance in the Kruskal-Wallis H test, used to determine if there are differences between two or more groups of an independent variable on a continuous or ordinal dependent variable.