1. Identify the instrument or process used for collecting & recording data on the primary outcome variable in the article.
2. Identify the level of measurement of data collected (i.e., nominal, ordinal, interval, or ratio) for the primary outcome variable.
3. Be prepared to describe reliabilty and validity of the instrument or process you have identified. If the article does not address reliability and validity and does not refer the reader to another source describing these psychometrics (i.e., reliability and validity), conduct a brief search (try CINAHL and PubMed) using the name of the instrument as a keyword (try using the title/name of the instrument in quotes and not in quotes; try searching with the keyword in the abstract and in all text) to see if you can find a source of details about psychometrics. If you are unable to find any information, how do you think the researchers could have tested reliability and validity of the instrument or process they used?
4. Identify the statistical procedure(s) used to analyze primary outcome data.