Two Groups of Rats Were Tested on How Fast They

question 20

Multiple Choice

Two groups of rats were tested on how fast they could learn to run a maze.Group 1 was given enrichment (handled every day and had toys in the cage) ,while Group 2 had no enrichment.The result of enrichment on speed of learning the maze was most likely:

• A)Not effective: both groups learned the maze at the same rate
• B)Inhibitory: the group with enrichment learned the maze at a slower rate
• C)Facilitating: the group with enrichment learned the maze at a faster rate
• D)Dependent on the type of rat studied

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Definitions:

Durbin-Watson Statistic

A measure used in statistics to detect the presence of autocorrelation in the residuals from a regression analysis.

First-Order Autocorrelation

First-order autocorrelation is a statistical measure indicating the correlation between values in a time series and their immediate predecessors.

Durbin-Watson D Statistic

A statistical tool designed to determine the existence of first-lag autocorrelation in the residuals of a regression analysis.

Regression Analysis

A statistical method for investigating the relationship between a dependent variable and one or more independent variables.