Reliability

• Why is reliability important in psychological investigations?

  It ensures consistent results across measurements
• What are some measurement tools used by psychologists?

  Questionnaires, interviews, observations
• What is external reliability in psychological measures?

  Consistency of results across different times
• What is internal reliability in psychological measures?

  Consistency among different parts of a measure
• What method assesses internal reliability using a questionnaire?

  Split-half method
• How does the split-half method work?

  It splits a measure into two parts for comparison
• What does a strong correlation in the split-half method indicate?

  High internal reliability of the measure
• What is the test-retest method used for?

  Assessing external reliability of a measure
• What does a strong correlation in the test-retest method indicate?

  High external reliability of the measure
• What is inter-observer reliability in observational studies?

  Agreement between different observers' results
• What is the first step in assessing inter-observer reliability?

  Create a list of behavioral categories
• How do researchers assess the reliability of content analysis?

  Using the same procedure as inter-observer reliability
• What statistical tests are used to measure correlations?

  Pearson's r or Spearman's rho
• What correlation value indicates a reliable measure?

  0.8 or stronger
• What can improve reliability in observational studies?

  Training observers and refining behavioral categories
• How can interviews be structured to improve reliability?

  By carefully phrasing questions to avoid confusion
• What type of questions can improve reliability in questionnaires?

  Closed questions to reduce confusion
• What established test is often used for assessing gender identity?

  Bem's Sexual Inventory (BSRI)
• What should experiments use to ensure reliability?

  Clear standardized procedures for all participants
• Why is it important to keep environmental conditions constant in experiments?

  To ensure all participants have the same experience
• What is the focus of the upcoming tutorial videos mentioned?

  Research methods and exam tips
• What is the role of Patreon supporters in the development of the research methods unit?

  They provide support for part-time teaching
• What is the next topic mentioned after reliability?

  Validity