1) Members of a particular football club are to be sampled to determine how different aspects of their membership affect overall satisfaction with the club. From the alphabetical list of all members, a survey is sent to every 10th member. Which option best describes the sampling method?

Question 2 options:

	Stratified
	Systematic
	Volunteer
	Multistage
	Cluster

2a) Elderly patients attending a particular hospital with bone fractures were asked to participate in a research study that would require their bone mineral density to be measured each year. The patients who agreed to take part in the study were also asked to complete a questionnaire regarding their dietary habits. Bone mineral density over time and the number of further fractures were to be recorded, and the results for patients who followed a high calcium diet were then compared to those whose diet was low in calcium.

Is this an observational study or an experiment? A. Observational study, since the patients were randomly assigned to high or low calcium diets B. Experiment, since the patients were deliberately assigned to different fractures C. Experiment, since bone density was measured D. Retrospective, observational study because past records were examined E. Prospective, observational study because the measurements were taken each year

2b) Which of the following statements regarding generalising to the population is the most accurate? A. The results can be generalised to all adults B. Since the sample was random, the results can be generalised to all elderly fracture patients C. The results should not be generalised to all elderly fracture patients since the participants may not be representative of the population D. Since patients were not deliberately assigned to calcium intake groups, the results should not be generalised to all adult fracture patients E. The results can be generalised to all elderly people since bone density measurements are numerical and continuous

2c) Which statement best reflects the design of the study? A. non randomised and double blind B. randomised and placebo controlled C. randomised and blocked D. controlled experiment E. observational

2d) In the context of the 5W's, which option best describes the 'Who'? A. bone density B. all people C. elderly people D. elderly people who have experienced a fracture E. the researchers analysing the results