# Understand how to Design a Questionnaire

In this worksheet, students criticise questions from a questionnaire.

Key stage:  KS 4

GCSE Subjects:   Maths

GCSE Boards:   AQA, Eduqas, Pearson Edexcel, OCR

Curriculum topic:   Statistics

Curriculum subtopic:   Statistics, Sampling

Difficulty level:

### QUESTION 1 of 10

When you are collecting data, you frequenctly need to speak to people to gather the information you are looking for. To do this you will normally use a questionnaire.

When designing questions for a questionnaire there are some rules that you need to stick to so that the information you collect isn't biased (unfair)

Rule 1: Never ask a leading question designed to get a certain response.

Bad Question: I think action films are the best, do you agree?

Improved Question: What is your favourite type of film?

Rule 2: Never ask a personal or irrelevent question?

Bad Question: How old are you?

Improved question: Which of the following age ranges do you fit into?

Rule 3: Make sure the ranges don't overlap

Bad Question: How many hours do you exercise a week?

0 - 1

1 - 2

2 - 4

Note that for this one, if you exercised for 2 hours, you wouldn't know which box to enter the data in.

Improved Question: How many hours do you exercise a week?

0 < x ≤ 1

1 < x ≤ 2

2 < x ≤ 3

Using the inequalities allows us to cover each option but not duplicate them.

Rule 4: Cover all the options.

Improved Question: What colour is your hair? Red, Black, Brunette, Blonde, None, Other

The usual way you can deal with this is to put options for None or Other (if they are appropriate)

A question from a questionnaire reads...

How many hours do you go to the gym each week?

0 - 1

1 - 2

3 - 4

Personal/irrelevant

Overlapping

Not enough options

A question from a questionnaire reads...

I think that people who live in my postcode are better than anyone else, where do you live?

Personal/irrelevant

Overlapping

Not enough options

You should never ask someone their age because it is a ...

Personal/irrelevant

Overlapping

Not enough options

You should never give your opinion because...

Personal/irrelevant

Overlapping

Not enough options

For each of these questions, state if it is valid or invalid

Which one of the following are valid ranges when collecting the ages of pupils in a school?

0 - 5, 6 - 11, 11 - 14, 14 - 16

5,6,7,8,9,10,11,12,13,14,15,16

5 - 10, 11 - 16

James is wanting to find out how much pupils in his school spend on their lunch.

He stands outside and asks students.

'How much did you spend on Lunch'?

Personal/irrelevant

Overlapping

Not enough options

Bill asks 20 people how many days a week they went to the Gym.

He used the following answer options.

1   2   3   4   5

Personal/irrelevant

Overlapping

Not enough options

I am collecting the ages of people who are learning to drive, which of the following options should I have in my answer sections?

(Click all that apply)

0 - 16

17 - 25

26 - 35

46 - 49

50 - 65

Over 65

A question from a questionnaire reads...

'People with back problems don't sit properly, what's your opinion?'

Personal/irrelevant

Overlapping

Not enough options

• Question 1

A question from a questionnaire reads...

How many hours do you go to the gym each week?

0 - 1

1 - 2

3 - 4

Overlapping
Not enough options
EDDIE SAYS
The question itself is fine. The problems come in the answer options. 1) Where would someone who did 1 hour a week put their answer? 2) What if someone did 5 hours a week?
• Question 2

A question from a questionnaire reads...

I think that people who live in my postcode are better than anyone else, where do you live?

Personal/irrelevant
EDDIE SAYS
There are two problems with this. 1) There is an opinion stated (I think...) 2) Is it appropriate to ask someone where they live
• Question 3

You should never ask someone their age because it is a ...

EDDIE SAYS
There are times when you need to collect personal information but you should always phrase it as a range.
• Question 4

You should never give your opinion because...

EDDIE SAYS
The key word to look out for here is 'I think...' or a statement over a question. Never give your opinion because it will lead to the interviewee following your lead.
• Question 5

For each of these questions, state if it is valid or invalid

EDDIE SAYS
Both the first and third are giving an opinion so they are leading and need to be rewritten.
• Question 6

Which one of the following are valid ranges when collecting the ages of pupils in a school?

5 - 10, 11 - 16
EDDIE SAYS
Two of these are inappropriate. One is because kids don't go to school until they are 5 One is far too specific (and could be seen as personal) Can you identify which is which?
• Question 7

James is wanting to find out how much pupils in his school spend on their lunch.

He stands outside and asks students.

'How much did you spend on Lunch'?

Personal/irrelevant
Not enough options
EDDIE SAYS
There are two problems with this. 1) It's very personal 3) Does standing outside the canteen represent all the pupils in school. What about those people who have packed lunch?
• Question 8

Bill asks 20 people how many days a week they went to the Gym.

He used the following answer options.

1   2   3   4   5

Not enough options
EDDIE SAYS
The question is actually really good, the problem is with the answer section. Does it cover all the possible options?
• Question 9

I am collecting the ages of people who are learning to drive, which of the following options should I have in my answer sections?

(Click all that apply)

17 - 25
26 - 35
46 - 49
50 - 65
Over 65
EDDIE SAYS
You need to think which of these ages can\'t learn to drive. You cant get your license until you are... Anyone else can learn to drive.
• Question 10

A question from a questionnaire reads...

'People with back problems don't sit properly, what's your opinion?'

EDDIE SAYS
The statement at the start is an indication of a leading question because it's giving an opinion.
---- OR ----

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