experimental design

• What topic does the video cover?

  Experimental design in psychology
• What is the relationship between participant sample and independent variable?

  They are combined in experimental design
• What are the two experimental designs mentioned?

  Repeated measures and independent groups design
• What is a repeated measures design?

  All participants complete both conditions
• What is an independent groups design?

  Participants are split into different groups
• What type of data is collected in independent groups design?

  Unrelated data from different groups
• What is a potential problem with independent groups design?

  Participant variables may influence results
• How could participant variables affect a study on temperature and reaction times?

  Younger participants may skew results
• What is a repeated measures design?

  Each participant completes both conditions
• What type of data is collected in repeated measures design?

  Related data from the same participants
• What are order effects in repeated measures design?

  Participants may improve or worsen over time
• How can order effects be controlled in repeated measures design?

  By using counterbalancing
• What does counterbalancing do?

  Balances order effects across conditions
• What is a disadvantage of independent groups design?

  It requires more participants for data
• What is a disadvantage of repeated measures design?

  Participants may guess the study's aims
• What is matched pairs design?

  Two groups matched on a characteristic
• How are participants assigned in matched pairs design?

  Based on a measured characteristic
• What is the advantage of matched pairs design?

  Reduces participant variable effects
• What is a disadvantage of matched pairs design?

  It takes longer to set up
• What is the relationship between strengths and weaknesses of experimental designs?

  Strengths of one are weaknesses of another
• What are the key features of independent groups design?

  • Different participants in each condition
  • Data collected is unrelated
  • Potential for participant variables affecting results
• What are the key features of repeated measures design?

  • Same participants in both conditions
  • Data collected is related
  • Potential for order effects influencing results
• What are the key features of matched pairs design?

  • Two separate groups matched on characteristics
  • Data collected is related
  • Reduces participant variables and order effects
• What are the advantages and disadvantages of each experimental design?

  Advantages:

  • Independent groups: Less order effects
  • Repeated measures: Fewer participants needed
  • Matched pairs: Reduces participant variables

  
  

  Disadvantages:

  • Independent groups: Needs more participants
  • Repeated measures: Order effects and demand characteristics
  • Matched pairs: Takes longer to set up
• How many tutorial videos are mentioned for research methods?

  Six tutorial videos
• What can patrons access on psych boost?

  Exam tutorial videos and printable resources
• Who is thanked for supporting psych boost?

  Students and teachers
• What is the purpose of the support from patrons?

  To allow part-time teaching and video creation
• What is the next topic mentioned in the video?

  Variables