AP Psychology Chap. 2

6910584	hindsight bias	the tendency to think that they knew it all along
6910585	applied research	research in order to solve practical problems
6910586	basic research	of interest to psychologists but not intended to have immediate, real-world applications
6910587	valid	measures what the researcher set out to measure
6910588	reliable	can be replicated
6910589	random selection	every member of the population has an equal chance of being selected
6910590	stratified sampling	a process that allows a researcher to ensure that the sample represents the population on some criteria
6910591	confounding variable	any difference between the experimental and control condition
6910592	experimenter bias	the unconscious tendency for researchers to treat members of the experimental and control groups differently to increase the chance of confirming their hypothesis
6910593	double-blind procedure	neither the participants nor the researcher are able to affect the outcome of the research
6910594	demand characteristics	cues about the purpose of the study
6910595	response or subject bias	the tendency for subjects to behave in certain ways
6910596	social desirability	the tendency to try to give politically correct answer
6910597	hawthorne effect	merely selecting a group of people on whom to experiment affect the performance of that group
6910598	descriptive statistics	simply describe a set of data
6910599	correlation coefficient	the strength of a correlation
6910600	inferential statistics	to determine whether or not findings can be applied to the larger population