External validity

• What is external validity?

  Relates to factors outside the investigation
• What is ecological validity a type of?

  External validity
• What are two types of external validity?

  Temporal and ecological validity
• What is ecological validity?

  The extent to which findings can be generalised to other settings/situations
• Ecological validity


  The extent to which findings can be generalised to other settings/situations
• What is temporal validity a type of?

  External validity
• Temporal validity


  Whether findings hold up over time