Experimental methods Flashcards
What is an aim
A statement about what the researches intends to investigate; the purpose of the study
What happens if the IV (independent variable) changes
Causes changes to the dependent variable (DV)
What is the Independent variable
The variable that is altered during a scientific experiment.
What is the Dependent variable
The variable being tested or measured during a scientific
What is a hypothesis
A precise and testable statement about the relationship between variables
What is operationalisation
A clearly defining variable in terms of how they can be measured
Make it testable and repeatable
What is a directional/one tailed hypothesis
The sort of difference that is anticipated between two conditions or two groups of people is made clear
Usually includes words like more less higher or lower
What is a non directional/ two tailed hypothesis
States that there is a difference between conditions or groups of people
The nature of the difference is not specified
When is a one tailed hypothesis typically used by psychologists
When the findings of previous research studies suggest a particular outcome
What is the experimental method
It involves the manipulation of an IV to measure the effect on the DV
