Experiments Flashcards
Experimental method definition
Involves the manipulation of an independent variable to measure the effect on the dependent variable.
May be lab, field, natural or quasi
Aim definition
A general statement of what the researcher interned to investigate;the purpose of the study
Hypothesis def
A clear, precise, testable statement that states the relationship between the variables to be investigated. Stared at the outset of any study
Directional hypothesis
States the direction the difference or relationship
Non directional hypothesis
Does not state the direction of the relationship
Variables
Any thing that can vary or change within an investigation. Variables are generally used in experiments to determine if changes in one thing result in changes to another
Independent variable
Some aspect of the experimental situation that is manipulated by the researcher - or changes naturally- so the effect of the DV can be measured
Dependent variable
The variable that is measured by the researcher. Any effect on the DV should be caused by the change in the IV
Operationalisation
Clearly defining variables in term of how they can be measured