AICE Unit 1- Research Methods

the variable which is manipulated by an experimenter.

the variable which is measured by the experimenter

variables other than the DV which Should be controlled

a extraneous variable that has not been controlled that could invalidate results

putting variables into measurable forms. (e.g. of investigating memory of participants this could be operationalized by measuring the number of words correctly recalled in 5 minutes)

the independent variable is manipulated by the experimenter in an attempt to produce a change in the dependent variable. All other extraneous variables are controlled there is a high validity as all extraneous variables are controlled so it's easy to infer cause and effect, however low ecological validity as condition are very artificial

the independent variable is manipulated by the experimenter. takes place in the participants natural environment. higher ecological validity ( than lab experiment) lower control of extraneous variables- less likely for low internal validity

the independent variable is occurring and takes place in a typical environment. High ecological validity as more relative to the real world and realistic behaviors but low internal validity as low control of extraneous variables makes it hard to determine cause and effect

a specific type of external validity. refers to whether results can be generalised outside of the study to different environments and situations

when participants pick up on cues to the aim of the study and subsequently subconsciously alter their behaviour to fit the aim