The results of an experimental study were statistically significant (p<.01). The researcher rejected the null hypothesis and accepted the alternative. In reality, there was no difference between the groups. The researcher

a. made a Type I error.
b. made a Type II error.
c. made a correct decision .
d. rejected a false null hypothesis.


ANS: A

Education

You might also like to view...

Most students will need a lot of direction while a few may excel when they are in a setting where they can explore problem solving tasks through independent learning. However, very few students need a combination of both learning environments

a. True b. False

Education

Standardized and researcher-made tests share some of the same characteristics. Which of the following is not usually characteristic of a researcher-made test?

a. The minimal influence of random errors of measurement b. The use of objective-type items c. The availability of norms for comparison d. The availability of raw scores which can be converted to percentile rank

Education

Virtually all people learn to speak, and despite wide diversity, all languages have similar forms, such as subject-verb structure. The theory of language acquisition best able to explain these similarities is:

a. behaviorist theory. b. social learning theory. c. nativist theory. d. constructivist theory .

Education

Names and dates found in parentheses throughout your textbooks that give credit to the original writers and are known as

a. promotions. b. works cited. c. bibliographies. d. biographies. e. citations.

Education