representativeness heuristic
heuristics
base rate
availability heuristic
cognitive biases
naturalistic observation
external validity
internal validity
case study
random selection
reliability
validity
response set
correlation design
-grouping of points on a two-dimensional graph in which each dot represents a single person’s data
scatterplot
illusory correlation
experiment
random assignment
experimental group
control group
-variable that an experimenter manipulates
independent variable
-variable that an experimenter measures to see whether the manipulation has an effect
dependent variable
operational definition
placebo affect