Questions Refer to the Following Research Study

question 60

Multiple Choice

Questions refer to the following research study:
Ronda would like to assess the effects of a reading comprehension course on the scores of students. She gives a group of remedial students a reading comprehension pretest and then randomly assigns them to either the treatment group or the control group. Shortly after the treatment, she measures their reading comprehension scores again.
-Suppose Ronda finds out that participants in the treatment group were helping participants in the control group with their reading comprehension. Ronda should be worried about which threat to internal validity?

• A) Selection
• B) Experimental mortality
• C) Testing
• D) Diffusion of treatment

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Definitions:

Predetermined Overhead Rate

A rate calculated at the beginning of a period, used to apply manufacturing overhead costs to products based on a chosen activity base such as machine-hours or labor-hours.

Variable Component

Variable Component refers to the part of total costs or expenses that changes in proportion to changes in the volume of activity or production levels.

Fixed Component

In cost accounting, this refers to costs that do not change with the level of production or sales, such as rent and salaries.

Variable Overhead Efficiency

Variable overhead efficiency refers to the effectiveness with which a company manages its variable manufacturing overhead costs in relation to its production activities.