Psyc 2016

A researcher is interested in whether the severity of a cold causes an increase in the use of tissues. They measure number of tissues used and self-reported cold severity. What type of test is most appropriate? A. Linear Regression B. Correlation C. Multiple regression D. Independent samples t test

A. Linear Regression

A researcher measures differences in recall between male and female participants. What type of statistical design is appropriate for this study? A. an independent samples t test B. a one-way between-subjects ANOVA C. a two-way between-subjects ANOVA D. a one-way within-subjects ANOVA

A. an independent samples t test

A researcher is curious whether the mean ratings of liking for a new food are greater than the ratings of most foods ( = 0) A. one-sample t test B. two-independent sample t test C. z test D. one-way between subjects ANOVA

A. one sample t-test

A researcher wants to test if stress levels among nurses are higher compared to stress levels in the general population ( = 4). What type of test is most appropriate for this study? A. one-sample t test B. two-independent sample t test C. z test D. Between subjects ANOVA

A. one sample t-test

A researcher measures cups of coffee consumed daily and daily work schedule to see if they are related. What type of test is most appropriate? A. Linear Regression B. Correlation C. Related Samples t test D. Independent samples t test

B. Correlation

A professor compared differences in class grades between students in their freshman, sophomore, junior, and senior years of college. If different participants were in each group, then what type of statistical design is appropriate for this study? A. a two-independent-sample t test B. a one-way between-subjects ANOVA C. a two-way between-subjects ANOVA D. a one-way within-subjects ANOVA

B. a one way between subjects ANOVA

A researcher selects a sample of 36 students from a school population (105 ± 12). She determines that the mean IQ in this sample is 104. What type of test is most appropriate for this study? A. an independent samples t test B. a z test C. a one-way between-subjects ANOVA D. a related samples t test

B. a z-test

A psychologist is curious if likelihood to be a CEO is predicted by extraversion (high-low), openness (high-low), agreeableness (high-low), neuroticism (highlow), conscientiousness (high-low). What type of test is most appropriate? A. Linear Regression B. Correlation C. Multiple regression D. Independent samples t test

C. Multiple regression

A professor finds that the average SAT score among all students attending his college is 1150 ± 150 ( ± ). He polls his class of 25 students and finds that the average SAT score is 1,200. What type of test is most appropriate for this study? A. one-sample t test B. two-independent sample t test C. z test D. one-way between subjects ANOVA

C. z- test

A psychologist is curious how memory is impacted by time of day (morning vs afternoon, vs evening vs night) and familiarity with the setting (familiar vs unfamiliar setting). The psychologist samples 400 participants and assigns them to one time of day and one level of setting familiarity to perform a memory task. They then compare memory levels between groups. What type of test is most appropriate to test this scenario? A. Linear Regression B. Correlation C. Multiple regression D. 2-way ANOVA

D. 2-way ANOVA

A researcher placed male rodents in the presence and absence of a male rodent of the same species. Mean cortisol (a stress hormone) levels of the rodent were compared at both times. What type of test is most appropriate for this study? A. an independent samples t test B. a z test C. a one-way between-subjects ANOVA D. a related samples t test

D. a related samples t-test

A researcher measures anxiety levels and cortisol to test if there is a relationship. What type of statistical design is appropriate for this study? A. linear regression B. one-way between-subjects ANOVA C. one-way within-subjects ANOVA D. correlation

D. correlation

A professor compares scores on a competency exam among students at three times during a single semester. What type of test is most appropriate for this study? A. one-sample t test B. two-independent-sample t test C. related-samples t test D. one way within subjects ANOVA

D. one way within subjects ANOVA

A professor compares scores on a competency exam among students at two times during a single semester. What type of test is most appropriate for this study? A. one-sample t test B. two-independent-sample t test C. related-samples t test D. one way within subjects ANOVA

D. one way within subjects ANOVA

A researcher compares differences in positivity between participants in a low-, middle-, or upper middle-class family. She observes 15 participants in each group and compares the average level of positivity in each group. What type of test is most appropriate for this study? A. linear regression B. one-way between-subjects ANOVA C. one-way within-subjects ANOVA D. multiple regression

one way between subjects ANOVA