Data analysis | stats | Harvard University


I need the dat analysis portion done for a critique paper. Attached is the text book required.

Directions for the Assignment: Group Research Critique

“Students will work in small groups on this assignment. Dr. Christensen will assign students to groups of 4 or 5 members each. Each group will choose one, instructor-approved research article, to critique and will incorporate the critique criteria as outlined in the textbook (see chapter 4 – Tables 4.1 & 4.2). The article chosen may be either a quantitative research article or a qualitative research article. Do not choose mixed methods studies or systematic reviews. Each group will write a formal research critique for the article chosen. All papers will be written using APA format (6th edition). Papers must be submitted on time. Refer to the criteria/guidelines for details concerning requirements below. This paper is due on week 11.

Critique Criteria & Reference Pages: See Polit & Beck, pages 66-67 for explanation of guidelines. For each specific topic, refer to the corresponding pages in the textbook for assistance. There are two examples of critiques in the textbook on pages 357 and 389 (Qual & Quant). Make sure you address each of the major categories/headings. See grading guidelines and rubric below.”

Article to be critiqued:

Specifically my portion of the paper needs to address theses questions from ch 14 in the book:

Were appropriate statistical methods used?

was the most powerful analytical method used? did the analysis control for confounding variables?

Where type 1 and type 2 errors avoided or minimized? Due to the confidence interval of 95%, it is unlikely that the researchers made a type I or type II error.

1. Did the descriptive statistics in the report sufficiently describe the major variables and background characteristics of the sample? Were appropriate descriptive statistics used for example was a mean presented when percentages would have been more informative?

2. Were the statistical analysis undertaken to assess threats to the study’s validity for example to test the selection biased or attrition bias?

3.Did the researchers report any inferential statistics? If inferential statistics were not used should they have been used?

4.Was the information provided about the hypothesis testing and parameter estimation(confidence intervals?) Were effects sizes reported overall did the reported statistics provide readers with sufficient information about the study results.

5.Were any multivariate procedures used? If not should they have been used for example would the internal validity of the study be strengthened by statistical controlling confounding variables?

6.Were the selected statistical tests appropriate given the level of measurement of variables and the nature of the hypothesis?

7.were the results of any statistical test significant what do the test tell you about plausibility of the research hypothesis? were effects sizable?

8.were the results of any statistical tests nonsignificant? is it possible about that these reflect type 2 errors? what factors might have undermined the study’s statistical conclusion validity?

9.Was information about the reliability and validity of measures reported? Did the researchers use measures with good measurement properties?

10. Was there an appropriate amount of statistical information? Were findings clearly and logically organized? Were tables or figures used judiciously to summarize large amounts of statistical information? Are the tables clear with good titles and row/column labels?