Correlations

• What is the main focus of the video on research methods in psychology?

  Use of correlations
• What can analyzing two sets of data for correlation show?

  Potential relationships and their strength
• What does the term 'correlation coefficient' refer to?

  A number describing the strength of correlation
• How does a correlational study differ from an experimental study?

  Correlational studies do not manipulate variables
• What are co-variables in a correlation?

  Variables that are measured and compared
• Which variables could be compared in a correlational study?

  Age, IQ, and bank account balance
• What is a scattergram used for?

  Displaying data collected in a correlation
• How would you plot a correlation on a scattergraph?

  Label axes and plot data points
• What does a positive correlation indicate?

  Both co-variables increase together
• What does a negative correlation indicate?

  One co-variable increases while the other decreases
• What is zero correlation?

  No relationship between the co-variables
• What is the range of a correlation coefficient?

  From -1 to 1
• What does a correlation coefficient of 1 indicate?

  A perfect positive correlation
• What does a correlation coefficient of -1 indicate?

  A perfect negative correlation
• What correlation coefficient is considered strong?

  0.8 or higher
• What is a critical evaluation of correlation studies?

  Correlation does not imply causation
• Why might low attendance correlate with poor exam performance?

  Students struggling may avoid class
• What is a positive evaluation of using correlations in research?

  They can highlight potential causal relationships
• Why are correlational studies often ethically favorable?

  They measure pre-existing variables
• What is the utility of the correlation coefficient?

  Describes the strength of a correlation
• What are the strengths and limitations of correlational studies?

  Strengths:

  • Highlight potential causal relationships
  • Few ethical problems with pre-existing variables
  • Useful correlation coefficient for strength

  
  

  Limitations:

  • Correlation does not imply causation
  • Potential extraneous variables affect results
• What resources are available for further study on research methods?

  • 6 tutorial videos on AS and A-level research methods
  • Worked examples for every question
  • Over a hundred printable resources on psych boost.com
• Who supported the development of the research methods unit?

  • Students and teachers on Patreon