Central tendency

• What are the measures of central tendency?

  Mean

  Median

  Mode
• What is a strength of using the mean?


  More sensitive than median and mode, makes use of all values of the data
• What is a weakness of the mean?

  Can be misrepresentative if there is an extreme value
• What is a strength of the median value?


  Not affected by extreme scores
• What is a weakness of using the median?


  Doesn’t take into account all the values
• What is a strength of using the mode?

  Useful when the data is in categories
• What is a weakness of the mode?

  There may be multiple modes