creating a study

• What is operationalisation of variables in psychology?


  Clearly defining variables in terms of how they can be measured
• Why is operationalisation important in psychological research?

  It ensures that variables are measurable and clearly defined
• What is a lab experiment in psychology?

  A controlled experiment conducted in a structured environment
• What is the purpose of a research aim?

  To provide a general statement of what the researcher intends to investigate
• What is a hypothesis in psychological research?

  A clear, precise, testable statement that predicts the outcome of a study
• What are the two types of hypotheses?

  Directional and non-directional hypotheses
• What is a directional hypothesis?

  A hypothesis that states the direction of the difference or relationship
• What is a non-directional hypothesis?

  A hypothesis that does not state the direction of the difference or relationship
• When should a directional hypothesis be used?

  When previous research suggests a specific direction
• When should a non-directional hypothesis be used?

  When there is no previous research or the research is new
• What should be considered when writing a hypothesis?

  Whether looking for a difference or relationship, one or two-tailed, and if variables are operationalised
• If 6 out of 10 participants spoke more words after drinking an energy drink, what is the percentage?

  60%
• Convert 60% to a decimal.


  0.60
• How do you reduce a fraction to its lowest common denominator?

  By dividing both the numerator and denominator by their greatest common factor
• What does reliability mean in research?

  Consistency in achieving similar results each time.
• What does validity refer to in research?

  Whether you are measuring what you claim to measure.