QUESTION 22 Your study has only one group of subjects. What is the primary decid
ID: 3325533 • Letter: Q
Question
QUESTION 22
Your study has only one group of subjects. What is the primary deciding factor between analyzing the data with a one-sample t test versus a Pearson’s r?
the research question: difference between means versus relationship between score sets
the time of treatment relative to data collection: assigned versus post hoc
the way in which the data were collected: experimenter measured versus self-reported
calculation convenience
4 points
QUESTION 23
We cannot use correlation to predict outcomes unless we first know which of the two variables is causing the other.
True
False
4 points
QUESTION 24
The predicted score in the regression is called what?
The confidence interval
The point estimate
The slope
The standard error of the estimate
4 points
QUESTION 25
An actual score's deviation from the predicted score is called what?
The point esimate.
The confidence interval.
The prediction error.
The standard error of prediction.
the research question: difference between means versus relationship between score sets
the time of treatment relative to data collection: assigned versus post hoc
the way in which the data were collected: experimenter measured versus self-reported
calculation convenience
Explanation / Answer
Q22) The research question: difference between means (t test) versus relationship between score sets (linear, non linear, hence r)
Q23) False. It does not matter. The r value will be the same.
Q24) The predicted score is called a point estimate, as it estimates a value from an unknown parameter.
Q25) This is called the error of prediction or prediction error.
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