Experimental methods

• the aim is the purpose of the study. It is a general statement of what the researcher intents to investigate.
• the hypothesis is a precise statement which clearly states the relationship between the variables being investigated.
• directional hypothesis states the direction of the different or relationship between variables.
• non-directional hypothesis does not state the direction of the difference or relationship between variables.
• The Independent variable is the aspect which has been manipulated by the researcher or changes naturally to have an affect on the DV.
• the dependent variable is the aspect measured by the researcher, caused by a change in the IV.
• operationalising is when a researcher clearly defines the variables in terms of how they are measured.