The main difference between experiments and other kinds of observational studies is _____________________.
a. the number of observations required to draw good conclusions
b. the need to get informed consent from the study participants
c. the fact that experiments manipulate certain aspects of the situation while other observational studies do not
d. the fact that we can’t carry out experiments in the laboratory
ANS: c.
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In order to protect the rights of individuals who participate in scientific research, it is necessary to
A. pay participants for the time that they give to the study. B. make the names of participants available to anyone who requests that information. C. weigh the potential risks to the participants against the anticipated benefits of the research. D. provide the participants with advice, based upon the results of the study, for how they can improve their lives.
Characteristics such as anxiety, shyness, and aggression tend to be ______.
a. unstable over time, but often find the same form of expression b. stable over time, as reflected in the same expression of these traits c. stable over time, but how these characteristics are expressed changes d. unstable over time, and often takes different forms of expression
How can teachers help students understand how to use context to determine the meanings of unfamiliar words?
What will be an ideal response?
Which best exemplifies acceleration?
A) Rose, a six-year-old, is in a third grade class because she has mastered first and second grade subject content. B) Carter is given more difficult reading material than her classmates in fourth grade. C) Coralee, who has mastered the third grade science curriculum, teaches it to others in her class who have not. D) Desmond studies subject areas not offered at his school, such as comparative religion and quantum physics.