A Curvilinear Regression Model ________

question 20

Multiple Choice

A curvilinear regression model ________.

• A)explains a linear relationship between variables
• B)is used when the residual plot shows a linear relationship
• C)is a model that is curvilinear in the parameters
• D)shows a curvilinear relationship between the variables

---

Definitions:

Control

In experimental design, the standard to which comparisons are made in an experiment, often an untreated group or the current standard treatment.

Blinding

A trial design technique where one or more parties involved (e.g., participant, investigator) are unaware of which participants are in the control group versus the experimental group to prevent bias.

Text Messages

Short electronic messages sent over a cell phone network from one mobile phone to another.

Control Group

In an experiment, a group of subjects that does not receive the experimental treatment and is used as a baseline to compare the effects of the treatment.