reliability

• wha is reliability

  the consistency of measurements
• what are two ways of assessing reliability

  1. test-retest
  2. inter-observer reliability
• what is test-retest reliability

  the same assement given to same participants on two occasions
• what is inter observer reliability

  extent which there is an agreement between two or more observers involved un observations
• how to improve reliability of questionnaires

  ensure questions are not to complex
• how to improve reliability of observation

  ensure behavioural categories are operationalised
• how to improve reliability of interview

  use structured interview or same interviewer
• how to improve reliability of experiments

  ensure procedures are standardised