A Psychologist Wants to Assess the Reliability of a New

question 18

Short Answer

A psychologist wants to assess the reliability of a new test of Self Control, the higher the scores the higher the level of control. A random sample of college students is selected and given the test. In order to tap the reliability, the test is scored on the basis of comparing the results of the odd items versus the even items. The data follow: $$\begin{array} { c c c } \text { Subject\# } & \text { Odd } & \text { Even } \\1 & 45 & 57 \\2 & 50 & 48 \\3 & 35 & 57 \\4 & 62 & 55 \\5 & 55 & 60 \\6 & 38 & 50 \\7 & 55 & 50 \\8 & 45 & 38 \\9 & 65 & 70 \\10 & 55 & 50\end{array}$$
-Is it significant? .

---

Definitions:

CVP Chart

A graphical representation used in Cost-Volume-Profit analysis to show the relationship between costs, volume of sales, and profit.

Major Components

Principal parts or elements that form the larger system or structure.

Break-even Point

The point at which total costs and total revenue are equal, resulting in no gain or loss for the business.

Cost-volume-profit Analysis

An accounting technique used to determine the effects of changes in costs and volume on a company's profit.