Research methods

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What is a null hypotheses?
A statement of no relationship
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What is a non-directional hypotheses?
A hypotheses that can predict that there will be a difference, but not where it will be
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What is operationalisation?
The act of clearly defining a variable by a researcher, through specifics
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What is a directional hypotheses?
A hypotheses where both the difference and where the difference will be can be predicted
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What is an extraneous variable?
These are unwanted 'extra variables' that could affect the experiment
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What are confounding variables?
These are extraneous variables that have affected an experiment
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What is internal validity?
Internal validity refers to extraneous and confounding variables
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What is external validity?
External validity refers how likely participants are to behave outside the experiment as they did inside the experiment
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What are the five types of sampling method?
Systematic, Opportunity, Random, Stratified and volunteer
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Card 2

Front

What is a non-directional hypotheses?

Back

A hypotheses that can predict that there will be a difference, but not where it will be

Card 3

Front

What is operationalisation?

Back

Preview of the front of card 3

Card 4

Front

What is a directional hypotheses?

Back

Preview of the front of card 4

Card 5

Front

What is an extraneous variable?

Back

Preview of the front of card 5
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