1.1 Quick revision

Consider this RQ (based on Jaworowska et al. (2012)):

For London take-away restaurants, is the average amount of salt in a Chinese meal the same as in an Indian meal?

  1. What type of RQ is this? Explain your answer, and why the other answers are incorrect.

    1. Descriptive.
    2. Relational.
    3. Repeated-measures.
    4. Correlational?

  2. What is the purpose this RQ?

    1. Estimation.
    2. Decision-making?

  3. Is an intervention present? If so, what is it?

  4. What is the outcome in this RQ? Explain your answer, and why the other answers are incorrect.

    1. The amount of salt in each meal.
    2. The average amount of salt in Chinese and Indian take-away meals.
    3. London take-away restaurants.
    4. The average amount of salt.

  5. What is the response variable?

    1. The amount of salt in each meal.
    2. The average amount of salt in Chinese and Indian take-away meals.
    3. London take-away restaurants.
    4. The average amount of salt.

  6. What is the unit of analysis? Explain.

    1. We need more information about how the data were collected.
    2. Each meal.
    3. Each restaurant.

  7. What is the unit of observation? Explain.

    1. We need more information about how the data were collected.
    2. Each meal.
    3. Each restaurant.

  8. The article states (p. 518) that "a takeaway meal was defined as food purchased from out of home food outlets or ordered for home delivery". What type of definition is this?

    1. Operational.
    2. Conceptual

References

Jaworowska A, Blackham T, Stevenson L, Davies IG. Determination of salt content in hot takeaway meals in the United Kingdom. Appetite. 2012;59(2):517–22.
Copyright © Peter K. Dunn, 2025