The next step is to extract data from each study, data refers to information which is relevant to your review/thesis question.
You will need to extract data from relevant studies in order to examine and compare results. While the data is being extracted, it is very important to employ good data management practices. Proper data management should begin as soon as you start extracting data, and may even dictate which types of data you decide to retain. Some reviews require the use of software to help with extracting data.
The links below include can help you with this task.
Adapted and modified with gratitude from Dalhousie Libraries Data Extraction and Management and City University of London's Doing Post Graduate Research research guide.
The NYU Health Sciences Library has put together a short video about best data management practices. The video outlines four data management tips:
The extraction process should be tracked using a standardized data extraction form (see examples below). Data can also be coded for computer analysis.