Table 2 Examples of coding variables for systematic maps
From: A methodology for systematic mapping in environmental sciences
Coding variable | Example of information that may be recorded |
|---|---|
Full reference | Author(s), title, date, publisher |
Year of publication | Date of publication in years |
Publication type | Academic journal, book, conference paper or thesis |
Language | Article language |
Study country | Name of country |
Linked study | Other articles reporting the same study |
Data source | e.g. Primary or secondary research |
Data type | e.g. Quantitative or qualitative |
Study design | e.g. Experimental, quasi-experimental, observational, survey |
Population(s) | e.g. Species, group |
Intervention(s) | Type(s) of intervention investigated |
Exposure(s) | Type(s) of exposure investigated |
Comparator(s) | Type(s) of comparator used |
Outcome(s) assessed | Types of outcome assessed |
Sampling strategy | e.g. None specified, randomised, systematic |
Length/period of study | e.g. Number of days, weeks, months, years or time period over which study was undertaken |