In What Type of Research Are Groups Not Formed by Random

question 142

Multiple Choice

In what type of research are groups not formed by random assignment

• A) true experiments
• B) posttest-only control group designs
• C) quasi-experiments
• D) within-participants design

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Definitions:

Null Hypothesis

A default statement that assumes no effect or no difference in the statistical testing framework, to be tested against the alternative hypothesis.

Two-Way Tables

A type of table used in statistics to display data collected from two categorical variables.

Alternative Hypothesis

A statement in hypothesis testing that proposes there is a statistically significant difference or effect, in contrast to the null hypothesis.

Chi-square Test

A statistical assessment designed to ascertain whether a notable relationship exists between two variables of categorical nature.