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Which of the following is the best example of a good short-answer item?

A study is designed to examine the effect of exercise (against no exercise) on knee pain, with measurements taken at 1 week, 3 weeks, and 6 weeks.  Participants are randomly assigned to one of the exercise conditions.  The appropriate design would be:

A researcher studied 100 patients to determine if there was a significant difference among five drugs for relief of arthritis pain.  Pain was measured using a standardized scale from 0-100, with 0 indicating no pain.   The decrease in pain over 1 month was evaluated.  A one-way ANOVA was significant, and the results below show the amount of pain relief using a Student-Newman Keuls comparison.  Which of the following statements is not a correct conclusion?

Course Feedback: Do you believe ChatGPT encouraged critical thinking and problem-solving skills?

A study was designed to compare three groups on balance scores following three types of balance training.  33 patients are randomly assigned to the two groups in a pretest-posttest design.  An ANOVA resulted in F (2, 30) =3.25, p = .07,

Course Feedback: How could the integration of ChatGPT into the course be improved in the future? (‘None’ if you have no feedback)

A researcher has established a correlation of –.29 (p = .002) between knee strength and weight in adults.  Based on this outcome, the relationship between strength and weight is:  

ANOVA uses a one-tail test to determine if a group is significantly different from other groups 

A researcher tested the involvement of the FAAT gene in obesity by measuring plasma triglyceride concentrations in wildtype and FAAT knockout (FAAT −/−) mice fed either a normal or high-fat diet for 6 weeks (n = 7 per group). The results are illustrated below and the output of a two-way analysis of variance test (2-way ANOVA) is reproduced below. Source of variation df SS MS F P Genotype 1 17550 17550 48.00

A study was done to consider the contributions of age, height, gender and weight on endurance, with results shown in the table.  Which of the independent variables has the greatest influence on endurance?