av TAN WEI 8 år siden
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credibility
consistency
dependability
construct validity: could be able to measure what you want
remove the contaminated
based on the personal constrcution
have topic in mind, need to control the group
convenience
snowball
Systematic sampling
stractice sampling
single random sampling
Strength (size of coefficient- weak or strong)
Form (linear or nonlinear)
Direction
Confounding variables
dependent variable
independent variable
Control condition
experimental condition
Randomly assign
"The structure of scientific revolutions"