Return To Hypotheses And Other Things Flashcards
Define confederate
An individual in a study who is not a real participant and has been instructed on how to behave by the investigator.
Define directional hypothesis
Example?
States the direction of the predicted difference between two conditions / groups.
People who have more than 8 hours sleep perform worse / better in class.
Define non-directional hypothesis
Example?
States that there is a difference between two conditions / groups, without stating the direction.
People who have more than 8 hours perform different in class
When to use a directional hypothesis?
When past research suggests that the findings will go in a particular direction
When to use a non-directional hypothesis?
When there is no past research or if past research is contradictory.
Define pilot study
A small scale trial run of a study to test any aspects of the design in order to make improvements.