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Question
A researcher manipulating the types of message a subject is exposed to in a Internet banner advertisement believes that a subject's age might show a statistical relationship with the dependent variable, so he includes ages in the statistical analysis. Age is an example of which type of variable?a. independent
b. blocking
c. covariate
d. mediating
Answer
This answer is hidden. It contains 1 characters.
Related questions
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Sketch an example of each of the following (be sure to label everything clearly):
a. table
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c. line graph
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The arrangement of the parts of a research report needed to create a good report is known as the ______.
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The total mean is the mean of a variable over all observations.
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When no direction of a relationship is stated in the hypothesis, a one-tailed test is appropriate.
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The independent samples t-test tests the differences between means taken from two independent samples or groups.
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A cross-tabulation is a simple way to describe the relationships between two groups.
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Q:
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Q:
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a. examine the actual means for each group
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Q:
The key statistical test for an ANOVA model is the _____.
a. c2test
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In a study comparing the means of two groups in which there are 45 males in Group 1 and 37 females in Group 2, the degrees of freedom for this study when using the t-test for the difference between means is:
a. 84
b. 80
c. 82
d. 160
Q:
In using the t-test to compare the means of two groups, the degrees of freedom are calculated as _____.
a. n1 - n2- 2
b. n1+ n2- 2
c. n1x n2-2
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Q:
Compare and contrast exploratory, descriptive, and causal research. Which approach is the best?
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Checking the data collection forms to correct omissions, illegibly written responses, and the consistency of answers is called ______.
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a. analyzing the data
b. editing the data
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d. reporting the results
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a. obtrusive method
b. unobtrusive method
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All of the following are examples of an observation study EXCEPT ____.
a. a mystery shopper pretending to be a customer in a McDonald's outlet
b. a cable laid across the street that records the number of cars that pass a certain intersection
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