Pairs of novice weight lifters from Clem's Gym have been matched for height, weight, and experience. One of each pair is assigned to one group and the other to a second group. Both groups work out for an hour and a half every second day, using the same routine. However, Group #2 receives special instructions on effective bench pressing strategies. Two months later, both groups are tested for improvement in the number of kilograms they are able to bench press. What test should be used to test for the difference in improvement between the two groups?
a. t-test for the difference between two independent means
b. t-test for the difference between two dependent means
c. z-test for the difference between two independent means
d. t-test for a single mean
e. z-test for proportion
Ans: b
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When scientists say that siblings share 50% of their genes, the scientists are referring to
a. segregating genes. b. phenotype. c. shared environment. d. gene-environment correlation.
Which of the following is the most likely explanation for a teacher who is observing lots of misbehavior in her classroom?
A) her curricula is unengaging B) there are lots of boys in the classroom C) the students are very young D) the parents have a different culture
If a portion of people from a population are asked to complete an assessment, then the average score among that group of people would be considered a
A. sample mean. B. population mean. C. median split. D. modal mean.
Provide an analysis of what could be seen as problematic about the traditional way to approach the teaching and learning process when teachers start with the content, then organize activities.
What will be an ideal response?