Hypothesis - A statement predicting the outcome of the research.
Alternate hypothesis - A statement which predicts a difference or correlation in the results.
Null hypothesis - A statement which predicts no difference or correlation in results.
Variable - Anything that is open to change.
Independent variable - Something the researcher changes or manipulates.
Dependent variable - Something that is measured to see if it has changed (after an independent variable has been manipulated).
Extraneous variable - A variable (which is not the independent variable) but could affect the dependent variable if not controlled.
Standardisation - A way of controlling extaneous variables; to keep variables the same across canditions.
Experimental design - A way of allocating participants to conditions in an experiment.
Repeated measures design - An experimental design in which participants take part in each cindition.
Independent groups design - an experimental design in which participants are different in each condition.
Sample - A smaller group selected from a larger population.
Target population - The entire a set of people researchers want to generalise their results to.
Representative - An accurate reflection of a larger group.
Random sample - A sample for which everyone in the target population has an equal chance of being chosen.
Opportunity sample - A sample drawn from the target population because they are available and convenient.
Ethical considerations - Issues of research that take into account the welfare of participants.
Informed consent - When participants are allowed to stop participating in a study or can stop the study altogether.
Right to withdraw - When participants are allowed to stop participating are allowed to stop participating in a study or can stop the study altogether.
Confidentiality - Protecting the identity of participants by not revealing names and other details.
Experiment - A method…