Reliability

Nota:

• how consistent the finding are, if it was repeated would the same/similar results be found?

1. needs
   1. high levels of control
   2. standardised procedure
   3. manipulate the IV to measure effect on DV
2. lab is highest
3. field is low

   Nota:

   • because enviroment could have changed slightly since last time, this is because we cannot control the enviroment but we can control the lab settings
4. strengths of low reliability
   1. high ecological validity
   2. less DC&SD
5. weaknesses of low reliability
   1. not control extreaneous variables
   2. not infer cause and effect
   3. low validity

      Nota:

      • lack of control so we do not know if we are measuring what we are meant to be measuring or if it is an extrenous varaible