# Research Methods- Snakes and Ladders

What is a type one error?
You reject the null hypothesis even though it is correct.
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What is the probability of a type one error occouring?
5% chance.
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What is a type two error?
Accept the null even though it is false.
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What is the probability of a type two error occurring?
Unknown.
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What is nominal data?
The number of things in a category (number of boys and girls)
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What is ordinal data?
Data ranked in an order (most attractive to least attractive)
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What is interval data?
Continuous data (e.g. height or test score)
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What type of test/graph would you use if you had an independent measures design and nominal data?
Chi- Square
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What type of test/graph would you use if you had an independent measures design and ordinal data?
Mann Whitney U
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What type of test/graph would you use if you had an independent measures design and Interval data?
Unrelated t-test
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What type of test/graph would you use if you had an repeated measures design and nominal data?
Sign test
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What type of test/graph would you use if you had an repeated measures design and ordinal data?
Wilcoxon
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What type of test/graph would you use if you had an repeated measures design and interval data?
Related t-test
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What type of test/graph would you use if you had a correlation and ordinal data?
Spearman Rho
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What type of test/graph would you use if you had a correlation and interval data?
Pearsons product.
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What is a lab experiment?
Experiment carried out in a controlled environment, the IV is manipulated by the DV.
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What is a field experiment?
An experiment taken place in the ppts natural environment, IV is manipulated DV is measured.
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What is a natural experiment?
Naturally occurring IV.
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What is a correlation?
A relationship between two variables.
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What is a case study?
An in depth investigation into an individual or a specific group.
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What is internal reliability?
Internal reliability refers to the extent to which a measure is consistent within itself.
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What is external reliability?
External reliability refers to the extent to which a measure varies from one use to another.
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## Other cards in this set

### Card 2

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What is the probability of a type one error occouring?

5% chance.

### Card 3

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What is a type two error?

### Card 4

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What is the probability of a type two error occurring?

### Card 5

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What is nominal data?

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