Indicators for reliability and validity | Level of reliability and validity | Level of validity | |
Clear specification of data collection and data analysis | Detailed description on which type of research was used | High | High |
Definition of research variable | High | High | |
Sources used stated | High | High | |
Information on how it dealt with missing data | High | High | |
Date of collection available | High | High | |
Information on how quality of data used in controlled | High | High | |
Transforming data (from raw data to result | High | High | |
Information about method used, e.g, statistical tests | High | High | |
Coding of data whether and how? | High | High | |
Clear organisation of data | High | High | |
Contact data presented | High | High | |
Clear specification about potential changes in procedure | Information about changes in methods used from one study to another | High | High |
Information about changes in sources used from one study to another | High | High | |
Information about changes in definitions used from one study to another | High | High | |
Updates | Due to error correction—information given | High | High |
Due to new version of report | High | High | |
Result of comparing data collected out the research concepts with the actual research concepts data | Dataset similar to each other | High | High |
Missing research variables report | Data for missing variables could be found using other sources that the research | Low | Low |
Data for missing variables could partly be found using other sources that the research | Medium | Medium | |
Data for missing variables could not be found using other sources that the research | High | High |