A researcher measures the correlation of the time it take participants to complete two tasks purported to measure the same cognitive skill. Participant times are converted to ranks from fastest to slowest. If ??D^2 = 165 and n = 20, then what is the decision for this correlation test?
A. retain the null hypothesis
B. reject the null hypothesis
C. there is not enough information to answer this question
Ans: B
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The power of the decision-making process is
A. stated by an alpha level. B. the likelihood of rejecting a false null hypothesis. C. the same as a null finding. D. the likelihood of committing a Type I error.
Gregory is a fifteen-year-old adolescent male who lives in a low-income neighborhood with his single mother and two siblings. He consistently scores in the borderline range of intellectual disabilities; however, the physicians at the neighborhood clinic have found no known physiological cause for his intellectual disability. Gregory most likely has
A. developmental retardation B. inherited mental retardation C. cultural-familial mental retardation D. metabolic mental retardation
Before the teachers arrange the classroom, they need to consider all of the following except:
a. student movement patterns throughout the room. b. students’ ability to adequately view all instructional materials. c. ease of students to obtain a variety of resources and materials. d. the academic history of the individual students.
The young child's first attempts at drawing are scribbles
a. True b. False