Values such as Cohen's d or r2 (the percentage of variance accounted for) are used to measure ____
a. the validity of a hypothesis test
b. the risk of committing a type I error
c. the size of a treatment effect or the strength of a correlation
d. the level of significance
c
You might also like to view...
The in-depth section in Chapter 10 examined a study by Flege and his colleagues (1999), concerning the pronunciation skills of people who had emigrated from Korea to the United States. According to this research,
a. people who had come to the United States during childhood were least likely to speak English with an accent. b. people who had come to the United States during adolescence were least likely to speak English with an accent. c. people who had come to the United States during adulthood were least likely to speak English with an accent. d. age of arrival had no effect on pronunciation skills, though it had a significant effect on the mastery of grammar.
Milestones, such as when children are able to walk alone, feed themselves, or become toilet trained tend to be governed by
a. assimilation. b. resiliency. c. habituation. d. readiness.
A person who starts a new, physically demanding job will experience increases in
muscle size, strength, etc. These are (a) long-term adaptations (b) short-term adaptations (c) increases in evolutionary fitness (d) learned responses, depending on the person's will power to "keep at it"
A psychology professor feels that her students will do better on her exams if music is playing while they take their exams. To test her hypothesis she divides her class in half. One half takes the exam in a room with music playing and the other half takes the exam in a similar room but without the music playing. In this case, the dependent variable is
a) the room the exam is taken in. b) the absence or presence of music playing. c) the exam. d) the students' scores on the exam.