Alpha bias - theories that assume there are real and enduring differences between cultures, thus they exaggerate the difference
Beta bias - theories that ignore or minimise existing differences.
eg. intelligence testing between cultures (IQ can vary in dif situations)
Imposed etic - when findings are found within one culture but generalised world wide
Etic approach - looking at behaviour from outside the culture, and attempting to describe universal behaviours
Universality - when findings from research can be generalised to all people, irrespective of genders and cultures, all psychologists should aim for this