When we have two independent samples, the best measure of effect size
a. will use a pooled standard deviation.
b. might be based on the standard deviation of a control group.
c. both a and b
d. is best based on the standard deviation of the treatment group.
C
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A researcher finds that men make more errors on a memory task than do women. After conducting the appropriate statistical test on this difference, he finds a probability level of less than .05 . The researcher will probably conclude that
A. the difference represents a chance fluctuation. B. the difference is statistically significant. C. if he conducts the study again, there is a high probability that no difference would be found or that women would make more errors. D. there is only a five in 100 chance that his finding represents a real difference between men and women.
Tyrone makes it a point to check in with all the group members and make sure they know he appreciates them. He also carefully monitors interactions and helps smooth over disagreements. What best describes his leadership style?
A. task B. social C. transactional D. transformational
Steven Hawkings is a theoretical physicist who is confined to
a wheelchair due to Lou Gehrig's disease and must "speak" by controlling a speech synthesizer through cheek movements. Even with this disability, Dr. Hawkings is able to continue to advance our understanding of the universe, which illustrates how our thinking abilities a. are innate. b. would not be realized without learning being a continual process. c. are less important than our motivation to succeed. d. make us adaptable to situations.
As we experience events in life, we often have to revise our memories of people, places, or things
For example, if your neighbor paints his house bright yellow, you essentially have to change your memory of what his house looks like in order to have an accurate representation of your neighborhood. This process is referred to as: a. memory revision. b. reconsolidation. c. alteration. d. adaptation.