Exhibit 7-3: a Researcher Is Examining the Effects of a Computer-Based

question 9

Multiple Choice

Exhibit 7-3: A researcher is examining the effects of a computer-based training program designed to teach algebra.The researcher randomly selects subjects for two groups and gives one group the computer training and the other standard teaching methods to see if the results of the two methods differ.The following scores are from the subjects' final test.
$\begin{array}{ll}{\text {CBT }}{} & \text {Control }\\ 52 & 65 \\ 55 & 45 \\ 56 & 47 \\ 53 & 46 \\ 50 & 47 \\ 49 & 33 \\ 52 & 39 \\ 53 & 49\end{array}$
-Refer to Exhibit 7-3.What is the observed value for the chosen statistic?

• A) .396
• B) 2.846
• C) 3.269
• D) None of these are true.

---

Definitions:

Self-Employed

A person who works for themselves and does not receive a salary from an employer, but instead earns income directly from their business or profession.

Work Settings

Work settings refer to the physical and social environments in which individuals carry out their job duties, including the organizational culture and structural aspects.

Four Year Colleges

Institutions of higher education that typically offer undergraduate degrees after a course of study lasting four years.

Biopsychological

Biopsychological pertains to the study of how biological factors influence behaviors, thoughts, and feelings.