In an Experiment Subjects Are Given a Pre-Test in an Effort

question 81

Multiple Choice

In an experiment subjects are given a pre-test in an effort to assess their attitudes about a new federal sentencing law that Congress is debating.Subjects assigned to the experimental group are given a series of lectures by experts on the impact the new law will have on prison populations.Immediately after the last lecture,a post-test is given to measure any attitude changes.Anticipating what the test is designed to measure (because of the lectures) those in the experimental group are subject to the threat of:

• A) diffusion
• B) statistical regression
• C) instrumentation
• D) testing

---

Definitions:

Interactions

The influences or impacts that different factors may have on one another within an experimental or observational study.

Room Illumination

The level or intensity of light in a room, which can affect mood, performance, and visual clarity.

Room Temperature

The ambient temperature that is considered comfortable for humans, typically around 20-22 degrees Celsius (68-72 degrees Fahrenheit).

Main Effect

In statistics, the direct influence of an independent variable on a dependent variable in an experimental design.