RM1 experimental research methods

what are the types of experiment?

laboratory, field, natural and quasi

what are the variables in an experiment?

independent variable, dependent variable, control variables, extraneous variables, confounding variables, participant variables

what are examples of extraneous variables?

investigator effects, demand characteristics, order effects

what are the types of experiment design?

matched pairs, repeated measures and independent groups

what are methods used within experimental designs to reduce limitations?

random allocation and counterbalancing

what are the different types of hypotheses?

directional, non-directional and null

define the aim of an experiment

a precise statement of why a researcy study is taking place, what is being studied and what the study is trying to achieve