type of experiments

• What is a pilot study?

  A small-scale trial run of a study to test any aspects of the design, with the view of making improvements
• why is a pilot study used?

  • to find out whether certain aspects of the design do/don't work
  • to see what variables need to be controlled
  • can see what needs to be adjusted without having invested as much time and money as a full scale study
• true or false? The results of a pilot study are relevant

  FALSE- not relevant as the researcher is only seeing what needs improving
• evaluate the different types of experiments

  LAB-

  • 😊high internal validity- high control
  • 😊easily replicated- high external validity
  • ☹️materials lack mundane realism
  • ☹️pps know they are being studied- demand characteristics

  NATURAL-

  • 😊allows research where IV can't be manipulated for ethical/practical reasons
  • 😊psychologists can study real problems
  • ☹️less control over extraneous/confounding variables
  • ☹️time consuming = expensive

  FIELD-

  • 😊high ecological validity
  • 😊pps not aware of being studied, no demand characteristics
  • ☹️less control over variables
  • ☹️time consuming and expensive

  QUASI-

  • 😊allows comparisons between type of people
  • ☹️pps could be aware- demand characteristics
  • ☹️DV may be artificial, low mundane realism