DESCRIPTIVE STATS, STATISTICAL TESTS

HideShow resource information
  • Created by: Emma
  • Created on: 27-01-11 10:08

Descriptive statistics

Levels of Measurement

  • NOMINAL - Putting data into categories.
  • ORDINAL - Putting data into rank order.
  • INTERVAL - Equal numbers that indicate a different when comparing things; no meaningful zero.
  • RATIO - Has same characteristics as interval data, except that it has a meaningful zero.

 

Measures of Central Tendency

  • MODE - Most common value.
  • MEDIAN - Arrange results in ascending order to find the middle value (average).
  • MEAN - All numbers are added together, then divided by the amount of numbers present.

 

Measures of Dispersion

  • RANGE - Highest and lowest values are added together, then divided by 2.
  • STANDARD DEVIATION - Spread of scores in relation to the mean score 

Comments

No comments have yet been made

Similar Psychology resources:

See all Psychology resources »See all Data analysis resources »