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Research Methods

1. Aims, Hypotheses and Variables

Aim ­ What you're setting out to research
Hypothesis ­ A precise and testable statement of the relationship between two variables
Dependent Variable ­ The thing we measure
Independent Variable ­ The thing that will be changed
Extraneous Variables ­ Something that might…

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Research Methods

- Observers may not be
Questionnaires ­ A written set of + Less social desirability bias - Leading questions are a
questions that can be open, closed, + Practical ­ large amounts of problem
structured or structured data in a short time can be - PPs may…

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Research Methods

Volunteer Sampling ­ + Gives you access to a wide - The sample is bias because
Advertising and asking for variety of participants your participants are all going
volunteers to be eager
Random Sampling ­ Putting + More chance of getting a - It could still be biased…

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Research Methods

Median ­ Putting the scores in It's not misleading even with
ascending order and finding anomalous results
the middle number
Mode ­ The most common It's not misleading, even with It can be useless if there are
anomalous results several modes or no modes at

Measure of…

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Research Methods

Lack of Researchers won't record the real Sometimes situations can be so unique
Confidentialit names of the participants that the person is identifiable anyway
Lack of Do not observe anyone unless you have Not everyone agrees on what a public
Privacy consent or they're in a public…

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Research Methods

12. Correlation

A starting point of being able to show cause and effect between two variables like age and height

Positive Correlation ­ As one increases, so does the other
Negative Correlation ­ As one increases, the other decreases
No Correlation ­ No patterns seen

Correlation Co-Efficients are…


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