Sameer finds that the effect size reported for an effect is somewhere between .25 and .60. He should conclude that this represents a ______ effect.
A. trivial
B. small
C. medium
D. large
Answer: C
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In a study, people played tug-of-war while blindfolded and were told they were pulling in a group on some trials and that they were pulling alone on other trials. When the people thought they were pulling in a group, they
a. pulled harder. b. made less of an effort to pull. c. did not vary the amount of effort they exerted on any of the trials. d. were erratic in the amount of effort exerted on the different trials.
A newborn baby scores under 7 on the Apgar scale. This indicates that the baby
a) is normal and healthy. b) requires help to start breathing. c) needs immediate, life-saving intervention. d) is premature.
Cognitive neuroscientists can examine the brain with tools such as __________.
A. electrolysis and PET B. PET, MRI, and fMRI C. MRI and electrolysis D. Gamma images and electrolysis
In a stemplot of scores ranging from 11 to 83, a score of 42 would be located at a stem value of ________.
A. 4 B. 2 C. 6 D. 40