Research methods

Experimental method

• involves the maniplation of an IV to measure the effect on the DV

• experiments may be labortary, field, natural or quasi

Aim

• A general statement of what the researcher intends to investigate

• the purpose of the study

Hypothesis

• a statement that states the relationship between the variables to be investigated

directional hypothesis

• states there is a difference and the direction (increase or decrease)

non directional hypothesis

• states there is a difference between variables but does not specify the direction of the difference.

independent variable

aspect of the experiment that is manipulated

dependent variable

the variable that is measured

operationalisation

clearly defining variables to make them testable

Extraneous variables

• any variable other than the IV that may affect the DV

Confounding variables

• a