Lecture 3 Flashcards
1
Q
Definition of experiment
A
Type of empirical investigation to relate hypotheses, expectations and observations by intervening on a system and measuring changes in it
2
Q
Confound variable meaning
A
a third variable that affects the relationship between the independent and dependent variables in an experiment
3
Q
External experimental validity
A
the extend to which experimental results obtained in the lab generalize to relevant situation in the outside world
4
Q
Randomization
A
use some method (e.g. lottery) based on chance alone to divide the subjects in an experiment into groups
5
Q
Random sample
A
picking a random sample of subjects from the general popuation for an experiment
