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research methods EXPERIMENTAL METHODS
controlled conditions, artificial enviroment, researcher diliberatly manipulates the independent variable and measures effect on dependent
carefully designed and controlled can be repeated so reasearcher can be confident in reliablitly
lacks ecological validity as artificial enviroment
participants may display demand characteristics
experimenter still manipulates the independent variable but experiments are in participants natiral enviroment
more ecological validity than lab
participants may be less conscious or unaware they are in an experiment so less likely to show demand characteristics
less control of extraneous variables
researcher doesnt have direct control over the independent variable it varies naturally and the effect on the dependent variable is recorded
high ecological validity
less conscious or unaware so no demand characteristics
no direct control over independent variable or extraneous variables
difficult to replicate so cant check reliability