Hypothesis - a precise and testable statement in an experiment, dependent - the variable that is measured, demand - P's changing behaviour to match the aims of the experiment is what ................characteristics, laboratory - highly controlled experiment, field - an experiment carried out in a natural environment but the IV is still manipulated, stratified - random, volunteer, opportunity, systematic......., deception - ethical issue which is lying about the true aims of the experiment, covert - undercover observation, closed - a yes or no question is a .......... question, quantitative - data in the form of numbers, positive - a p.................. correlation, repeated - an experimental design which is where participants repeat the experiment twice '...................measures', structured - an interview with pre set questions and is not like a conversation, directional - what kind of hypothesis is used when previous research on the topic has been done already, extraneous - a variable that can effect the experiment if it is not controlled, volunteer - a sampling method where advertisements are put up to attract participants,

Research methods

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