A sociology student plans to investigate whether pupils who consistently complete homework achieve higher grades than pupils who rarely do. Before starting the main study, she gives a short version of her questionnaire to 10 pupils in one class, and finds that several pupils do not understand the phrase 'consistently completed homework'. She rewrites the question before sending the full questionnaire to 300 pupils across the school. [This is a hypothetical scenario, written for this exercise.]
Using your knowledge of hypotheses and pilot studies, explain what is happening in this scenario.
(Total for Question 12 is 6 marks)