Hypotheses and Variables Flashcards
What does Experiment mean?
Involves the manipulation of IV to measure effects on DV
What is independent variable (IV)?
The variable that is changed by researcher to measure effects on DV
What is Dependent Variable (DV)?
The variable measured
What is the Control Condition?
The condition of an experiment where the independent variable isn’t manipulated
What is the experimenter variable?
The variable where IV is manipulated
What are results from Experimental condition compared with?
The control condition (and vice versa)
What does Aim mean?
The purpose of a study
What does a research hypotheses do?
It predicts statistically significant effect of IV on DV
What is a Directional Hypotheses?
It’s a hypothese that states the actual difference between two conditions (e.g. when you eat more junk food, more unhealthy)
What is a Non-Directional Hypotheses?
- It doesn’t predict direction of results
- Just states there will be a difference
What is a Correlation Hypotheses?
There’s a relationship between two variables
What is a Difference Hypotheses?
States difference between two conditions
What two things can come under Directional and Non-Directional Hypotheses?
- Correlational Hypothese
- Difference Hypothese
When is a directional hypotheses appropriate?
When there’s already a range of research carried out, which suggests a particular outcome.
What does Operationalise mean?
When the researcher clearly defines the variables in terms of how they are being measured (makes it more defined)
