Question 7Select the research example for which a one-way between-groups ANOVA would be the appropriate test.1 pointResearchers want to test for a difference in memory scores before and after a new memory technique is introduced.Researchers want to examine the relationship between the number of class absences and final course grade.Researchers compared the mean difficulty rating of math problems among groups of participants who experienced a positive stressor, a negative stressor, or no stressor, respectively.College administrators are interested in whether high school GPA predicts college GPA.

Question 13Select the scenario that would be appropriate for a two-way between-groups ANOVA. 1 pointAnalyzing the relationship between high school GPA and college GPAComparing the mean reading fluency scores of the same 50 middle school students at the beginning of the year, middle of the year, and end of the yearComparing mean aggression scores after playing a competitive video game, a cooperative video game, or no video gameAnalyzing (simulated) mean driving speed based on the presence of a speed limit sign (e.g., speed limit posted for some participants and not posted for other participants) and the presence of a peer (e.g., peer present for some participants and not present for other participants)

Which of the following is an example of a one-way ANOVA test?a.)Comparing the number of hours of sleep between children and teenagers.b.)Comparing the monthly incomes of residents who live in urban and suburban areas.c.)Studying the number of hours of sleep for teenagers, adults, and senior citizens.d.)Studying the number of hours slept as well as the average GPAs for middle school, high school, and college students.

In which one of the following situations would it be most appropriate to use an ANOVA to analyze the data? A professor is interested in whether a research mentoring program can help students gain admission to graduate school. She randomly assigns 90 students who plan to apply to graduate school to one of three groups: (1) a one-semester research mentoring program, (2) a two-semester research mentoring program, or (3) no mentoring program. She then follows the students and records whether each student gained admission to a graduate program. A medical researcher wanted to measure the dosage effects of a new medication on the A1C levels of people with pre-diabetes symptoms. The A1C test is a blood test that returns a number (for example, 6%) that reflects how well a person’s blood sugar levels have been controlled over the last several months. The researcher randomly assigned the 60 participants into three conditions: (1) placebo group (no medication), (2) 100 mg of medication, or (3) 200 mg of medication. At the end of 30 days, the A1C levels of each participant was measured

Question 8A one-way within-groups ANOVA is the appropriate test for which of the following independent variables?1 pointType of diet, with participants consuming either a vegan, Mediterranean, or raw food dietType of test, with half of participants assigned to a multiple-choice test and half assigned to short-answer testDistraction conditions, including the same individuals with no distraction, a visual distraction, and an auditory distractionReading time, measured in minutes

ANOVA testing is used for ...