Term
| Qualitative/ Quantitative |
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Definition
Qualitative: describe with words
Quantitative: describe with numbers. |
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Term
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Definition
Variable: can be measured and varies
Constant: Doesn't vary! |
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Definition
| Varies as a result of changing the IV/ confounding variable. |
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Definition
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Term
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Definition
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Term
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Definition
Equal distances between measuring points- indicates MAGNITUDE.
INTERVAL scale: no absolute 0 point (can have a measure lower than 0- e.g. temperature)
RATIO scale: Have an absolute 0 point (can't get lower than 0).
More meaningful than interval because can work out ratios between measures. |
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Term
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Definition
MEAN, MEDIAN, MODE
Only for continuous.
**For nominal can calc. mode and frequencies. |
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Definition
Range: difference between highest and lowest.
Interquartile range: difference between highest/lowest using 50% of the data- to get rid of outliers.
-Moderate outliers- I.Q. range x 1.5
-Extreme outliers- I.Q. range x 3
** IQ+/- x= outliers |
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Term
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Definition
S.D.- average deviation from mean.
VARIANCE- spread of data, takes into account every score (unlike range)
-amount data varies around the mean.
-Only for continuous!
**Can't compare |
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