EVALUATION

• STRENGTHS OF INDEPENDENT GROUPS DESIGN?

  • time efficient
  • no order effects
• WHY ARE INDEPENDENT GROUPS DESIGN TIME EFFICIENT?

  • no prior matching
  • both conditions can occur at same time
• WEAKNESSES OF INDEPENDENT GROUPS DESIGNS?

  • poor control of participant variables
  • more expensive
• HOW TO DEAL WITH POOR CONTROL OF PARTICIPANT VARIABLES IN INDEPENDENT GROUPS DESIGNS?

  random allocation