Why is it important to make certain that all the items in a scale are scored in the same direction before you enter your variables into the reliability program to compute a Cronbach alpha?
Answer to relevant QuestionsGive an example of a specific sampling strategy that would yield a random sample of 100 students taken from the incoming freshman class of a state university. You may assume that you have the names of all 1,000 incoming ...Using the guidelines given in this chapter (and Table 1.4), name an appropriate statistical analysis for each of the following imaginary studies. Also, state which variable is the predictor or independent variable and which ...a. Find the sample means M, standard deviation s, and standard error of the mean SEM for scores on temperature. b. Examine a histogram of scores on temp. Is the shape of the distribution reasonably close to normal? c. Set up ...How can you use the item-total statistics from the reliability program to decide whether reliability could be improved by dropping some items? Consider this study conducted by Kim Mooney (1990) at the University of New Hampshire. SBP was measured at six points in time using a Finapres noninvasive blood pressure monitor: Time 1: When participants arrived at the ...
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