Related articles:
External validity
Validity (statistics)
Effect size
Key terms:
may
variable
groups
validity
change
bias
effect
study
mean
researcher
experimental
rule
etc
selection
inference
differences
observed
participants
independent variable
statistical
related
course
degree
basis
instrument
rival
internal validity
subjects
conclusion
scores
affect
control groups
threat
designs
manipulate
physical
discrepancy
confounding
determine
scientific
occurs when
experimental groups
causal inference
between groups
researcher may
alternative explanations
participants may
dependent variable may
experimenter bias
due to the independent variable
Search external links cited by footnotes on Wikipedia page Internal validity:
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