Why Are Random Assignment and the Use of Control Groups

question 2

Essay

Why are random assignment and the use of control groups requirements for more powerful true experimental designs?

---

Definitions:

Quartile

A statistical term describing each of four equal groups into which a population can be divided based on a distribution.

Histogram

A graphical representation of the distribution of numerical data, showing the frequency of data points in consecutive, non-overlapping intervals.

Frequency Distribution

A Frequency Distribution is a statistical representation showing the number of observations within specified intervals or categories.