A scatterplot has TWO data points for each individual in the data set, one data point for each variable that was measured. (True or False)
What combination of variables could you analyze using correlation?
A.religious identification & life satisfaction
B.IQ score and annual income
C.ethnic identification & average # of children
D.preferred genre of music & age
If the alpha level is set to 0.001 instead of 0.05, it would be MORE likely to reject the null hypothesis. (True or False)
Which of the following is NOT an example of a repeated-measures design?
a researcher tests memory performance of students before and after their first year of high school
a researcher tests symptoms of anxiety before and after a new therapeutic treatment
a researcher measures self-perception before and after participants take a Zumba class
a researcher tests whether individuals from Generation Z use social media in ways that are different from Millenials
False.
B. IQ score and annual income.
True.
a researcher tests whether individuals from Generation Z use social media in ways that are different from Millennials.
False. A scatterplot typically has one data point for each individual in the dataset, with one variable represented on the x-axis and another variable represented on the y-axis.
The combination of variables that could be analyzed using correlation is B. IQ score and annual income. Correlation analysis is used to examine the relationship between two continuous variables.
False. If the alpha level is set to 0.001 instead of 0.05, it would be LESS likely to reject the null hypothesis. The alpha level is the threshold used to determine statistical significance. A lower alpha level means that the evidence required to reject the null hypothesis needs to be stronger.
a researcher tests memory performance of students before and after their first year of high school. This is an example of a repeated-measures design because the same participants are measured on the same variable at multiple time points. The other options involve measuring different groups of participants or different variables, which are not repeated-measures designs.
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B.IQ score and annual income