Interviews
Researcher asks a participant questions directly - Qualitative
Focus Group
Multiple participants are interviewed in a group and can collaborate while feeling natural. Suffers from conformity effects.
Researcher Triangulation
Multiple observers compile their data in an attempt to limit researcher bias.
Reactivity
Changing behavior because you know that you’re being observed.
Method Triangulation
Using multiple methods on the same experiment
Counter-Balancing
Every participant does both conditions
Expectancy Effect
Participants doing what they think the researcher wants them to do.
Matched Pairs
Participants are matched to a condition based on traits or behaviors they have.