Discussion Post: Childhood Trauma
When describing the sample size, provide evidence that the sample size is adequate for the research design. If you used the statistical flowchart from the media piece, you should have anappropriate statistical test. As a rule of thumb, consider the following:
a) Absolute minimum: 50 cases or participants applicable to studies that use frequencies or descriptive statistics and parametric statistical tests (t-tests, ANOVA, correlation, regression analysis). Additional requirements related to the use of certain statistical analysis procedures may increase that number. Survey research = 10 subjects per survey question.
b) An a-priori Power Analysis is required to justify the study sample size based on the anticipated effect size and selected design. Include this in addition to using the literature to support your choices.]
The response should include a reference list. Using double-space, Times New Roman 12 pnt font, one-inch margins, and APA style of writing and citations.