Complete Data Flashcards
Why is it important to minimize attrition?
Because attrition can reduce statistical power
Because attrition can effectively turn a random sample into a non-random sample
What should NOT be included in the tracking sheet?
Treatment status
It is ideal if the surveyor is not aware of the treatment status to avoid any possible surveyor biases or effects
Typical information in a tracking sheet
Date of visit Whether respondent was found Reason respondent was not found Whether survey was completed Whether supervisor was present Surveyor (ID) who conducted survey
In digital data collection case management, assigning a “case” to a “user” means the same thing as assigning:
Respondent to a surveyor
Each case refers to a respondent with a unique ID. A user is the person who uses the digital survey tool to elicit responses. So, assigning case to a user means assigning a respondent to a surveyor.
Chris Robert argues that “you can create separate digital instruments for different tracking purposes – but that’s not strictly necessary”. Why might we not need separate tracking instruments with digital surveys?
Because tracking information can be built into the questionnaire directly
creating separate digital instruments for different tracking purposes is not strictly necessary because your primary digital instrument can adapt to the circumstances. If nobody is available to be surveyed, for example, it can ask why not and when to try again, and then end the survey. The point is, digital instruments are adaptive – and filling them in doesn’t waste paper, even if most of the survey is skipped.
When might we consider providing special compensation to respondents for participating in the survey?
When respondents claim they have no time to answer questions