If a researcher is interested in whether a new training technique affects
reading achievement scores, and the group chosen for the study is already high
in reading-achievement levels, the lack of any further significant increase may
be due to
the
a. researcher having chosen the .05 rather than the .01 level of statistical
significance
b. halo effect
c. Hawthorne effect
d. ceiling effect
d
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A crucial element in a scientific attitude is the assumption that
A) scientists comprehend the world better than nonscientists. B) our current understanding of a subject may be incomplete or even wrong. C) the only way to really know anything is to study it scientifically. D) the universe is governed by scientific laws.
A budding author wishes to improve her typing. Which of the following would be least helpful in a program to help her reach her goal?
a. giving herself reinforcement each time she consistently improves in either speed or accuracy b. keeping a careful record of her current rates of speed and accuracy c. punishing herself whenever she fails to achieve the goals she has set for herself d. deciding on specific improvements she wishes to make in speed and accuracy