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Basics
N/A
9
Psychology
Undergraduate 1
05/29/2014

Additional Psychology Flashcards

 


 

Cards

Term
Qualitative/ Quantitative
Definition
Qualitative: describe with words
Quantitative: describe with numbers.
Term
Variable vs Consant
Definition
Variable: can be measured and varies
Constant: Doesn't vary!
Term
Dependent Variable
Definition
Varies as a result of changing the IV/ confounding variable.
Term
Nominal Variable
Definition
Categories
Term
Ordinal Variable
Definition
ordered scale
Term
Continuous Varibale
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.
Term
Central Tendency
Definition
MEAN, MEDIAN, MODE
Only for continuous.
**For nominal can calc. mode and frequencies.
Term
Spread
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
Term
Variability
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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