Experimental Method Flashcards
Define aim
A general statement of what the researcher intends to investigate and the purpose of the study
Define hypothesis
A clear precise and measurable statement that states the relationship between the variables tested, stated at the start of a study
Define non-directional hypothesis
A statement that outlines no clear cause and effect relationship between the variables
Why would one use a non directional hypothesis
When there is no previous, or no previous consistent data/studies to help establish a clear hypothesis
Define directional hypothesis
A statement that says a clear cause and effect relationship between the variables (shows a direction)
Why would one use a directional hypothesis
When there is previous consistent data to help establish an accurate hypothesis
Define variable
Any thing in an experiment that can change or vary within an investigation
What is an independent variable
IV is the thing that the experimenter changes (or changes naturally) in hopes of it having an effect on the DV that can be meausred
What is a dependant variable
A DV is what the experimenter measures to see effects of IV
What is operationalisation
Clearly defining of variables in hypothesis so the study can be replicated and the hypothesis is testable
