A researcher hypothesizes that nurses have higher average salaries than teachers. In conducting an analysis to test this hypothesis, how might the alternative hypothesis be stated?
a. H1: ?D = 0
b. H1: ?D ? 0
c. H1: ?Nurses’s salaries ? ?Teacher’s salaries
d. H1: ?Nurses ? ?Teachers
c. H1: ?Nurses’s salaries ? ?Teacher’s salaries
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A conductive hearing loss is:
a. the result of a problem with the auditory nerve that transmits impulses to the brain. b. caused by disorders of the cochlea. c. caused by a blockage or barrier to the transmission of sound. d. usually both a loss of hearing sensitivity as well as distortion and lack of clarity in sounds.
A professor computes the mean difference in exam scores before and after a lecture as 9.0 ± 14.5 (MD ± SD), and this difference was significant. What is the effect size for this result using estimated Cohen's d?
A. d = 0.62 (medium effect) B. d = 1.61 (medium effect) C. d = 0.62 (large effect) D. d = 1.61 (large effect)
Which group of ethical theories focuses on who the leaders are as people
A. deontological B. teleological C. altruism D. virtue-based
Which of the following statements is true of the phonics approach to teaching children how to read?
A. Reading materials should be whole and meaningful. B. Reading instruction should parallel children's natural language learning. C. Reading should be connected with listening and writing skills. D. Early reading instruction should involve simplified materials.