M&E Chapter 5 Quiz

What do statistically significant findings imply?

• The results are very important.

• The results are not very important.

• The results are likely due to chance differences among groups.

• The results are likely due to real differences among groups.

Which of the following methods is used to test the association between two nominal variables?

• chi-square

• t-test for two dependent groups

• one-way ANOVA

• two-way ANOVA, repeated measures

An investigation was conducted on how the time of year (winter, spring, summer, fall) affects body weight and basal metabolic rate. What is(are) the independent variable(s)?

• time of year

• body weight and basal metabolic rate

• body weight

• basal metabolic rate

An investigation was conducted on how the time of year (winter, spring, summer, fall) affects body weight and basal metabolic rate. What is (are) the dependent variable(s)?

• time of year

• body weight and basal metabolic rate

• body weight

• basal metabolic rate and time of year

Which statistical method is used to estimate percent body fat based on age, gender, and skinfold measurements?

• Pearson correlation coefficient

• simple regression

• MANOVA

• multiple regression

A researcher investigated the relationship between age (10 years, 12 years, 14 years) and gender on percent body fat. What is (are) the dependent variable(s)?

• A. percent body fat

• B. gender and age

• C. age and percent body fat

• D. age

The fitness instructor is concerned with pretest to posttest differences in percent body fat from subjects involved in a water aerobic training class. The correct statistic the teacher should use to examine this mean difference is

• A. t-test for independent groups

• B. t-test for dependent groups

• C. chi-square

• D. one-way ANOVA

Suppose you conducted an experiment where you examined the effects of strength training on three factors: muscular endurance, muscular strength, and muscular power. Which of the following would be true?

• A. Strength training would be a dependent variable.

• B. Muscular power would be an independent variable.

• C. Muscular endurance would be a control variable.

• D. none of the above

Which of the following methods is used when one group of subjects is measured on only two separate occasions?

• A. chi-square

• B. dependent t-test for paired groups

• C. one-way ANOVA

• D. two-way ANOVA, repeated measures

Which of the following is an inferential statistic?

• A. mode

• B. F ratio

• C. standard deviation

• D. range