scientific methods Flashcards
what is a controlled group
used for comparison and provides baseline data
what is an experimental group
exposes participants to the IV to provide a direct observation
what is convenience, random and stratified sampling
C = quickest and easiest, R = equal chance and S = divid into groups based on relevant characteristics
controlled experiments
between subject design = split into two groups control and experimental, within subject design = same participants and mixed design = paired and tested in different conditions
case study
in-depth investigation of a individual, group or a particular phenomenon
correlational study
non experimental study where two or more variables are observed and measured without manipulation