Term
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Definition
T-tests
Pearsons correlation
ANOVA
Regression |
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Term
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Definition
Chi Square
Man-Whitney U
Wilcoxon test
Kruskall Wallis test
Friedman test |
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Term
| Stages in scientific research |
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Definition
1) Theory
2) Hypothesis
3) Research Design
4) Data
5) Descriptive/Inferential statistics |
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Term
| Types of experimental design |
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Definition
Independent groups
Repeated measures
Matched pairs |
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Term
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Definition
Independent groups
Repeated measures
Counterbalancing
Matched pairs |
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Term
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Definition
Participants less likely to work out aim of study.
Need more participants.
Not as much control of confounding variables. |
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Term
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Definition
Fewer participants
More control of confounding variables
More likely to guess aim |
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Term
| Counterbalancing (assigning order to groups) |
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Definition
| Matched pairs (each member of pairs to separate groups) |
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Term
| Levels of measurement (differ in terms of magnitude, absolute zero and equal intervals) |
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Definition
Nominal = categorical data
Ordinal = categorical data
Interval = continuous data
Ratio = continuous data |
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Term
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Definition
Mutually exclusive categories
No magnitude
(Male/female) |
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Term
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Definition
Ranking in order of magnitude
Interval between units not always equal
(8th/bronze, silver, gold) |
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Term
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Definition
Has magnitude
No absolute zero
(temperature/ date) |
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Term
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Definition
Highest level of measurement
magnitude, equal interval and absolute zero
(weight/height/number of books) |
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Term
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Definition
| Look at relationship between 2 variables |
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Term
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Definition
| Predict one variable from another |
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Term
| Correlation: Are 2 variables related? |
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Definition
Does one increase as the other increases?
Does one decrease as the other increases? |
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Term
| Correlation: How can we get a numerical measure of the degree of relationship? |
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Definition
Correlation: relationship between variable
Correlation Co-efficient: a measure of the relationship between variables |
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Term
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Definition
| Measure of strength of relationships, (either spearmans or pearsons) -1 and +1 (0=no correlation) |
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Term
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Definition
R=top number on left
sig= middle on left |
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