Week 1
ANOVA
Kruskal-Wallis Test
Chi-square test
A nurse wonders if gender is associated with penicillin allergies. Which statistical method can be used to answer this question? 1. Descriptive statistics 2. T-test 3. Chi-square test
T-test
A nurse wonders if the mean ages are different between patients who are allergic to penicillin and those who are not. Which statistical method can be used to answer this question? 1. ANOVA 2. T-test 3. Chi-square test
Correlation
A nurse wonders if there is a relationship between height and weight. Which statistical method can be used to answer this question? 1. T-test 2. Correlation 3. Chi-square test
Descriptive statistics
A nurse wonders what percentage of the patients are allergic to penicillin. Which statistical method can be used to answer this question? 1. Descriptive statistics 2. T-test 3. Chi-square test
ANOVA
Compares a continuous variable among more than two groups
Paired t-test
Compares a continuous variable between pre- and post-treatment
T-test
Compares a continuous variable between two groups
Pearson Correlation
Spearman Correlation
Reject the null hypothesis H0
Suppose we set significance level α = 0.05 for a hypothesis test. If p-value < 0.05, we: 1. Reject the null hypothesis H0 2. Accept the null hypothesis H0 3. Reject the alternative hypothesis H1
Based on random assignment
This question is related to Exercise 1.1 from the Knapp textbook, which stated: It is expected that aerobic square dancing during the 30-minute recess at an elementary school will help fight childhood obesity. Quiz Question In this study, the best way to assign a student to the treatment group or the control group is: 1.Based on the student's own choice 2.Based on the teacher's choice 3.Based on random assignment
Participate in the square dancing
This question is related to Exercise 1.1 from the Knapp textbook, which stated: It is expected that aerobic square dancing during the 30-minute recess at an elementary school will help fight childhood obesity. Quiz Question In this study, the students in the treatment group will: 1. Do whatever they want 2. Do nothing 3. Participate in the square dancing
Not sing any song
This question is related to Exercise 1.1 from the Knapp textbook, which stated: Professor Madrigal has a theory that singing improves memory. Quiz Question In this study, the members of the control group will: 1. Not sing any song 2. Sing songs quietly for 1 hour 3. Sing songs loudly for 1 hour
H0: Singing has no effect on memory
This question is related to Exercise 1.1 from the Knapp textbook, which stated: Professor Madrigal has a theory that singing improves memory. Quiz Question In this study, which one of the following statements is the correct null hypothesis? 1. H0: Singing has no effect on memory 2. H0: Singing enhances memory 3. H0: Singing weakens memory
Control group
Which group receives a standard treatment, a placebo, or no treatment at all? 1. Treatment group 2. Control group 3. Both the treatment and control group
Paired T-Test
Wilcoxon Test
Chi-square test
Examines the relationship between two categorical variables
Pearson correlation
Examines the relationship between two continuous variables
T-Test
Mann-Whitney U Test
