T(20) = 1.99, two-tailed. Based on these results, we _____
a. reject Ho
b. fail to reject Ho
c. accept Ha
d. fail to reject Ha
b
You might also like to view...
Research suggests that by age __________, boys behave more independently and less compliantly than girls.
A. 5 years B. 6 years C. 2 years D. 3 months
Which of the following is NOT true of all neurotransmitters?
a. They are chemicals. b. They are stored in synaptic vesicles. c. They are released across the synaptic space. d. They increase the likelihood that the next neuron will fire.
Professor Lee wants to examine the effects of two different teaching methods on student
performance. She uses the first method of teaching in her 1st-year introductory course and the second method in her 2nd-year advanced course. She finds that student performances are better in the advanced class than in the introductory class. She concludes that the second teaching method is superior. What is the problem with her conclusion? a. The variables had invalid operational definitions. b. There was no control group for comparison. c. The presentation of teaching materials was not counterbalanced. d. Interrater reliability in measuring student performance was low. e. There is a confounding of students' year in school with teaching methods.
Research on the treatment of autism by Lovaas showed that
A. intensive behavioral treatment was more beneficial than less intensive treatment B. children were more likely to improve when placed in regular classrooms C. both a and b D. none of the above