chapter7 Flashcards
any means used to rule out threats to the validity of a peice of research
control
the concept of _____ is essentially a way of establishing that two individuals (or groups, or conditions) are identical except for the variable of interest
control
subjects in an experiment who receive recieve treated
experimental group
subjects in a between-subjects design experiment who are like every respect except that they do not receive treatment
control group
the _____ group serves as basis of comparison for the ____ group
control
experimental
a condition in a within-subject design experiment that does not contain the experimental manipulation
control condition
research design in which each subject experiences every condition of the experiment
within-subjects experiment
research design in which each subject experiences only one of the conditions in the experiment
between-subjects experiment
both meanings of the word _____ relate to the use of statistics in research
control
failure to confirm a _______- is not proof that it is wrong
hypothesis
unbiased assignment process that gives each subject an equal and independent chance of being placed in every condition
random assignment
control procedure to ensure that experimental and control groups are equated on one or more variables before the experiment
matching
a condition in an experiment that cannot easily be removed and so is made an independent variable as a means of control
nuisance variable
mathematical means of comparing subjects on paper when they cannot be equated as they exist in fact
statistical control
repeating an experiment to see if the results will be the same
replication