evaluation - natural experiments

• strength of natural experiments

  has high ecological validity as IV is naturally occurring and the task will not be artificial, so results are more representative to real life situations.
• strength of natural experiments

  less demand characteristics as participants are experimented in their natural environment so they may not know they're in a study.
• weakness of natural experiment

  results are less reliable and difficult to replicate this study because there's no control over the IV and EVs
• weakness of natural experiment

  no control over IV and EVs so its difficult to draw the cause and effect