Dr. Brown conducts an experiment to examine the effects of mentorship programs on children's academic achievement. She finds that children who are given mentors receive significantly higher grades than children who are not. The result is statistically significant at the .05 level. What does this mean?
a. The finding probably occurred by chance; mentorship programs probably DO NOT really improve academic achievement.
b. The finding probably did NOT occur by chance; mentorship programs probably DO boost academic achievement.
c. The finding was larger than expected; mentorship programs appear to be even more effective than Dr. Brown suspected.
d. The finding was smaller than expected; mentorship programs appear to be less effective than Dr. Brown suspected.
Question 2
Martin is a very powerful company president. When he conducts a meeting, if he so much as frowns, the other people in the room behave so as to stop the potential conflict they see coming based on that frown. This reaction to Martin's anger illustrates the____aspect of anger.
a. action-motivating
b. conflict-defusing
c. impulsive
d. aggressive
The standard protocol of a metagenomics experiment.
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Summary of Avery, MacLeod, and McCarty’s experiment