1. How to Write Questionnaires

2. Leading questions E.g. ‘Do you think my Product is brilliant?’
‘Do you think my shop will do well?’
You aren't offering enough choice. You are leading them to the answer you want

3. Vague Questions
E.g. ‘would you visit my shop: often, regularly, frequent’
‘How often would you buy products from my shop: now and again, sometimes, almost never’
You are being to vague, you need to be more exact so you can analyse your results

4. Biased Questions
E.g. ‘Would you be willing to pay £30 for a CD from my shop?’
Would you visit my shop everyday?
Making figures artificially high, leading the results to be biased towards you

5. Open-ended Questions E.g. What would you like me to stock in my shop?
What cakes would you like me to stock in my café?
You are leaving it to open, not providing a base for comparison. You need closed questions, give them answers to pick from.
E.g. What music do you prefer:
Rock  Pop Folk, etc

6. Missing figures E.g How much would you be willing to pay?
 £  £3-4 £5-6
You have left gaps in your figures you need to overlap the figures, e.g:
 £0-2  £2-4 £4-6

7. Questions you need to be careful asking
Age
Gender
Income
Job

8. Questions you need to be careful asking
You have to be careful of offending people with these questions. You need to put these types of questions at the end of the questionnaire and make them optional. Refine the answers as, well to avoid offending.
E.g. Age
    35+

9. Information from your questionnaire:-
Product – competitors, products / services required, how often used
Prices prepared to pay
Best location for your business
Best ways to promote your business
Age
Gender