Peer Review (2-minute video)
What is authority? (4-minute video)
When you first encounter a potential source, you'll want to know very quickly whether it is worth reading in detail and considering for your research. To avoid wasting time on unhelpful sources as much as possible, you can the following two strategies to evaluate your sources during the initial search process.
Image created by Maria R. Barefoot on 6/10/2016
Literature Review is a comprehensive survey of the works published in a particular field of study or line of research, usually over a specific period of time, in the form of an in-depth, critical bibliographic essay or annotated list in which attention is drawn to the most significant works.
Also, we can define a literature review as the collected body of scholarly works related to a topic:
An empirical research article (original research) is an article which reports research based on actual observations or experiments. The researcher may have used quantitative methods, which generate numerical data and seek to establish causal relationships between two or more variables, or the researcher may have used qualitative methods, which objectively and critically analyze behaviors, beliefs, feelings, or values with few or no numerical data available for analysis.
A systematic review answers a defined research question by collecting and summarizing all empirical evidence that fits pre-specified eligibility criteria.
A meta-analysis is the use of statistical methods to summarize the results of independent studies. By combining information from all relevant studies, meta-analysis can provide more precise conclusions than an individual study.
Not all systematic reviews contain meta-analysis.
A helpful mnemonic to remember the evaluation criteria, CRAAP is an acronym for:
Helpful questions for initial evaluation: