Research Methods Exam 3 Quiz Questions With Verified Answers 2024

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 - correct answer-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) - correct answer-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) - correct answer-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. - correct answer-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. - correct answer-The researcher would use multiple regression. The third variable problem can cause problems in both correlational studies and experimental studies. (t/f) - correct answer-true