Research methods exam 3 quiz Questions With Complete Solutions !!!
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Course
Research
Institution
Research
The relationship between number of hours a student studies research methods materials and their grade on the research methods final exam would be best described by which of the following:
No correlation
Positive correlation
Irrelevant
Negative correlation - ANS positive correlation
...
Research methods exam 3 quiz Questions
With Complete Solutions !!!
The relationship between number of hours a student studies research methods materials and
their grade on the research methods final exam would be best described by which of the
following:
No correlation
Positive correlation
Irrelevant
Negative correlation - ANS positive correlation
A researcher calculates the correlation between number of quiz attempts taken and the number
of points earned on the quiz. The researcher finds an r value of 0.87, which is considered a
strong negative correlation. (t/f) - ANS false
In the regression equation Y = a + bx, b refers to the slope of the line that best fits the data on
the scatterplot. (t/f) - ANS true
What is a partial correlation?
A procedure that allows researchers to examine the relationship between two variables that are
discrete rather than continuous in nature.
A procedure that allows researchers to calculate a correlation between two variables that
attempts to control for third variables statistically.
A correlation between two variables that has a strong r value (either positive or negative) but
has a p value that is greater than 0.05.
A correlation with an r value between -0.09 and +0.09. - ANS A procedure that allows
researchers to calculate a correlation between two variables that attempts to control for third
variables statistically.
If a researcher wanted to examine the effect of two predictor variables (amount of turkey eaten
and number of family members present) on a single outcome variable (the stress level during
the meal), how would the researcher go about testing this relationship?
The researcher would use single regression.
The researcher cannot examine the effect of two predictor variables on a single outcome
variable.
The researcher would use multiple regression.
The researcher would find the best fitting line. - ANS The researcher would use multiple
regression.
, The third variable problem can cause problems in both correlational studies and experimental
studies. (t/f) - ANS true
In a correlational design, it is not possible to conclude causation unless the researcher is very
precise in the measurement of the predictor and outcome variable. - ANS false
In the study of Czech ornithologists, we are not sure if increased beer drinking caused
decreased research productivity, or if decreased research productivity caused increased beer
drinking. This issue is an example of what?
The correlation problem
The regression problem
The directionality problem
The drunk flamingo problem, lol
The predictability problem - ANS the directionality problem
If Dr. Chapman makes predictions on the basis of correlational research, she is using a
regression analysis. (t/f) - ANS true
An r value of 0.0001 would suggest that there is no correlation between variables. (t/f) - ANS
true
A criterion variable is another term for the predictor variable. (t/f) - ANS false
A researcher conducts a correlational study and finds that there is a strong positive correlation
between the amount of turkey eaten at Thanksgiving dinner and the duration of naps taken after
Thanksgiving dinner. Which of the following statements is NOT true, based on the information
provided here.
Eating large amounts of turkey causes people to take longer naps after Thanksgiving dinner.
There is no way to determine the directionality of the relationship between the amount of turkey
eaten and the length of naps taken based on this study alone.
People who eat smaller portions of turkey tend to take shorter naps after Thanksgiving dinner.
Longer nap times are associated with larger turkey amounts. - ANS Eating large amounts
of turkey causes people to take longer naps after Thanksgiving dinner.
An elementary school teacher notices that as the day wears on, his students tend to act more
and more disobedient. He wonders if there is a relationship between the time of day and the
level of disobedience. If you were to design a correlational study with a predictor variable of the
the number of hours a child has spent in school that day and an outcome variable of the level of
disobedience displayed, what type of relationship would you expect to find?
There is not enough information provided to answer this question.
A positive correlation between time of day and disobediance level.
A negative correlation between time of day and disobediance level.
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