Do you know how many questions you need to have for a test to be reliable?
Often candidates will suggest that there were too many questions in a test, most of which were too hard or easy, or that many of the questions were not relevant to the construct being assessed. The key to developing effective and efficient tests, questionnaires and/or exams is to include well-targeted questions, which can highlight knowledge gaps in the target population group. If you include, say, 30 questions in a test, which are well-targeted to the population group, it is
