Quasi-Experiments

• What is a quasi-experiment?

  A research method using existing groups
• What is an independent variable in a quasi-experiment?

  The variable manipulated by the researcher
• In a quasi-experiment, how might researchers compare students?

  By comparing students in different schools
• Why do researchers use existing groups in quasi-experiments?

  To study effects without random assignment
• What is the focus of the gender roles investigation in teamwork?

  Observing teams composed of males or females
• What is a potential limitation of quasi-experiments compared to true experiments?

  Less control over initial group characteristics
• What do quasi-experiments use for participant assignment?

  Pre-existing groups
• What type of control do true experiments have over groups?

  Full control over groups
• What is a key characteristic of quasi-experiments compared to true experiments?

  Quasi-experiments do not use random assignment
• What are the main characteristics of quasi-experiments?

  • Participant Assignment: Pre-existing groups
  • Control: Limited control
  • Causality: Weaker causal claims
• What are the key aspects that differentiate true experiments from quasi-experiments?

  • Participant Assignment:
  • True: Randomly assigned
  • Quasi: Pre-existing groups
  • Control:
  • True: Full control
  • Quasi: Limited control
  • Causality:
  • True: Stronger claims
  • Quasi: Weaker claims
• How do quasi-experiments differ in terms of causality compared to true experiments?

  Weaker causal claims
• What is the main difference in participant assignment between true experiments and quasi-experiments?

  True experiments use random assignment
• What is the implication of using pre-existing groups in quasi-experiments?

  It limits control over variables compared to true experiments
• Why do true experiments allow for stronger causal claims?

  They randomly assign participants to groups
• What is the implication of using pre-existing groups in quasi-experiments?

  Causal claims are weaker
• What is a weakness of quasi-experiments regarding control?

  Higher potential for confounding variables
• Why might researchers have less control in quasi-experiments?

  Because they use pre-existing groups
• How does the media consumption study differ from true experiments?

  It compares naturally existing groups without random assignment
• Why can't students be randomly assigned in the public versus private school study?

  Because schools are pre-existing groups
• In what scenario would you use a quasi-experiment instead of a true experiment?

  When pre-existing groups are necessary for the study
• What is a strength of quasi-experiments concerning control?

  Limited control over groups
• What is a limitation of quasi-experiments in establishing causality?

  Cannot establish strong cause-and-effect
• What is a weakness of quasi-experiments related to participant assignment?

  No random assignment
• What is a dependent variable in a quasi-experiment?

  The variable affected by the independent variable
• What is a weakness of quasi-experiments regarding design?

  Requires careful design to avoid bias
• What is a strength of quasi-experiments regarding the setting?

  Practical in real-world settings
• What is a strength of quasi-experiments regarding participant assignment?

  Uses pre-existing groups
• What is a strength of quasi-experiments concerning cost?

  Can be more cost-effective
• How does the control in quasi-experiments compare to true experiments?

  Quasi-experiments have limited control
• How does a quasi-experiment differ from a true experiment?

  Quasi-experiments use existing groups, not random assignment
• What is a weakness of quasi-experiments related to the environment?

  Less artificial environment needed
• What are the strengths and weaknesses of quasi-experiments?

  Strengths:

  • Uses pre-existing groups
  • Practical in real-world settings
  • Can be more cost-effective

  
  

  Weaknesses:

  • No random assignment
  • Limited control over groups
  • Higher potential for confounding variables
  • Weaker causal claims
  • Requires careful design to avoid bias
• What are the key characteristics of quasi-experiments?

  • Use existing groups
  • No random assignment of participants
  • Study the effect of independent on dependent variables
  • Compare pre-existing conditions or groups