e-Articles (Chapter 8)
Here are the titles of some full-length research articles that illustrate concepts discussed in this chapter. To view any article on-line, simply click on its title.
Illustrates the good practice of conducting an a priori power analysis so as to determine the appropriate size of samples. (See the sixth paragraph of the section entitled "Methods.")
Beautifully illustrates how the hypothesis testing procedure can lead to statistical significance without indicating practical significance.(See the 2 paragraphs that immediately precedes the "Summary.")
Illustrates the use of the nine-step version of hypothesis testing, with sample sizes determined via a power analysis. Within this a priori power analysis, the effect size was specified in a "raw" rather than "standardized" manner. See the first two paragraphs of the final section of "Methods" ("Sample Size Estimation and Data Analysis).
In this study, the 9-step version of hypothesis testing was used, with the power analysis being conducted for a fixed number of subjects. (See the final 2 sentences of the last paragraph in the "Methods" section.)
Illustrates the use of eta-squared to assess the "strength-of-association. See the final 3 paragraphs of "Results.")
Illustrates the use of the hybrid approach to testing null hypotheses. Twice, the researchers obtain a "statistically significant" result and report precise p-levels (p = .018 and p = .029) next to the calculated value.
Illustrates the use of the hybrid approach to testing null hypotheses. With an unstated alpha level of .05, the researchers report, for different tests, p<.05 and p<.01 and p<.001. (See the second and third paragraphs of "Results.")
Illustrates the use of the hybrid approach to testing null hypotheses. See the notes beneath Tables 1 and 3.
Copyright © 2012
Schuyler W. Huck