Laboratory experiment

• What does ecological validity refer to in laboratory experiments?

  It refers to the naturalness of behavior observed
• Why is ecological validity often low in laboratory experiments?

  Because artificial conditions may not reflect real life
• How does high reliability in a laboratory experiment affect confidence in results?

  It increases confidence that changes are due to IV manipulation
• What is the impact of demand characteristics in laboratory settings?

  Participants may alter behavior, making data invalid
• Why do demand characteristics pose a problem in laboratory experiments?

  They can lead to invalid data due to altered behavior
• What are experimenter effects in the context of laboratory research?

  They refer to researcher bias affecting data collection
• How can experimenter effects influence the outcome of an experiment?

  They can introduce bias in data collection and interpretation
• What is the definition of reliability in laboratory experiments?

  High control over variables ensuring consistent results
• What is the relationship between high control over variables and the dependent variable (DV)?

  It allows for confident attribution of changes to the IV
• How do demand characteristics affect the validity of data in experiments?

  They can lead to participants behaving unnaturally
• What is the risk associated with experimenter effects in research?

  Researcher bias can skew data interpretation