Question 2. The scientific method and measurement concepts The scientific method is characterised by an empirical approach. Key
concepts include clear conceptual and operational definitions of constructs, reliable and valid measures, and testable hypotheses. Complete the following: (a) Choose two psychological concepts that you think could be related (correlated) to each other e.g., boredom and social media use (Do not use this example yourself!). Provide a conceptual definition for each concept and write a brief rationale that describes why you think the two variables might be related. State a hypothesis that flows from your rationale and includes both constructs. (4 marks) (b) Provide an operational definition for the constructs you chose in (a). How would you measure these variables? (You can use established measures) (2 marks) (c) Differentiate between the reliability and validity of a measure. Using the operational definitions you provided in Part (b), discuss: i) two methods for determining reliability (2 marks) ii) two methods for determining validity (2 marks)
