A Multiple Regression Model Has the Estimated Form ​

question 99

Multiple Choice

A multiple regression model has the estimated form ​ = 7 + 3x₁ + 9x₂
​
As x₁ increases by 1 unit (holding x₂ constant) , y is expected to

• A) increase by 9 units.
• B) decrease by 9 units.
• C) increase by 3 units.
• D) decrease by 3 units.

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Definitions:

Longitudinal Design

Research design in which one participant or group of participants is studied over a long period of time.

Cohort

A group of people banded together or treated as a group, often used to define individuals born around the same time who experience similar cultural or historical events.

Participants

Individuals who take part in a research study or experiment, often used to collect data on human behavior, reactions, or opinions.

Activity Theory

A theory that suggests aging successfully is related to staying physically and mentally active.