In an Experiment,researchers Exposed Half of the Participants to Loud

question 31

Multiple Choice

In an experiment,researchers exposed half of the participants to loud noise during a memory-encoding task.The room was quiet for the other half of the participants.Later,all participants were given a memory test and the number of correct items recalled was obtained for each participant.What is the dependent variable?

• A)the number of items recalled
• B)the noise level during the encoding task
• C)the time interval between encoding and recall.
• D)the probability of being assigned to the two groups

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Definitions:

F-test Statistic

A value derived from an F-test which is used to compare statistical models in terms of variance explained by the models, to determine if the models are significantly different from each other.

ANOVA Table

A table used to summarize the sources of variability in the data being analyzed in an Analysis of Variance (ANOVA) test.

Regression

An analytical method to determine how a dependent variable correlates with one or more independent variables.

Standard Error

The standard deviation of the sampling distribution of a statistic, commonly used to measure the accuracy of sample-based estimates of a population parameter.