Collecting Data Worksheet A This worksheet is in

Collecting Data – Worksheet A This worksheet is in 2 sizes.

Printing To print handouts from slides Select the slide from the left. Then click: File > Print > ‘Print Current Slide’ To print multiple slides Click on a section title to highlight all those slides, or press ‘Ctrl’ at the same time as selecting slides to highlight more than one. Then click: File > Print > ‘Print Selection’ To print double-sided handouts Highlight both slides before using ‘Print Selection’. Choose ‘Print on Both Sides’ and ‘Flip on Short Edge’.

Questionable Questionnaire John has designed this questionnaire to answer the hypothesis: “Students at this school try to be healthy” What problems can you see with each question? How would you rewrite each question? 1) Name and address: 2) Age: 0 -5 5 - 12 3) What is your hair colour? 4) Are you healthy? 10 - 15 15 - 30 Blonde Red Yes Other: No 5) Glucose dissolves readily in water is because it has Agree lots of polar hydroxyl groups. Disagree So you should consume less glucose. 6) What sports do you play? Volleyball Cricket Other 7) How many hours do you play each week? 0 -2 3 -5 6 -8 9 - 11 8) How much do you spend on staying healthy each week? £ 1 - £ 5 9) You should run to stay fit. £ 1 - £ 5 Agree 10) Did you eat a healthy lunch yesterday? Other: Disagree Yes No 11) What will you eat for dinner tonight? Burger 12) If you are unhealthy it is your fault. Pasta Strongly Agree Pizza Agree Disagree

Questionable Questionnaire John has designed this questionnaire to answer the hypothesis: “Students at this school try to be healthy” What problems can you see with each question? How would you rewrite each question? 1) Unnecessary. Not confidential. 1) Name and address: 2) Age: 0 -5 5 - 12 3) What is your hair colour? 4) Are you healthy? 10 - 15 15 - 30 Blonde Red Yes 2) Bad range selection. Overlapping ranges. Other: 4) Irrelevant. Possibly unknown. Personal. No 5) Glucose dissolves readily in water is because it has Agree lots of polar hydroxyl groups. Disagree So you should consume less glucose. 6) What sports do you play? Volleyball Cricket 5) Too difficult for laymen. Opinion. 6) Limited selection. Missing ‘None’ option. Other 7) How many hours do you play each week? 0 -2 3 -5 6 -8 9 - 11 8) How much do you spend on staying healthy each week? £ 1 - £ 5 9) You should run to stay fit. £ 1 - £ 5 Agree 10) Did you eat a healthy lunch yesterday? Other: Yes 12) If you are unhealthy it is your fault. Pasta Strongly Agree 7) Bad range selection. Missing times (2. 5 hr). 8) Bad range selection. Unspecific. 9) Too specific. Opinion. Disagree 10) Opinion. No 11) What will you eat for dinner tonight? Burger 3) Irrelevant. 11) Future data. Limited range. Pizza Agree Disagree 12) Biased choices. Opinion. No ‘Don’t know’ option.

Questionable Questionnaire John has designed this questionnaire to answer the hypothesis: “Students at this school try to be healthy” What problems can you see with each question? How would you rewrite each question? 1) Name and address: 2) Age: 0 -5 1) Name and address: 5 - 12 3) What is your hair colour? 4) Are you healthy? 10 - 15 15 - 30 Blonde Red Yes 2) Age: Other: No 0 -5 5 - 12 3) What is your hair colour? 4) Are you healthy? 10 - 15 15 - 30 Blonde Red Yes Other: No 5) Glucose dissolves readily in water is because it has Agree lots of polar hydroxyl groups. Disagree So you should consume less glucose. 6) What sports do you play? Volleyball Cricket Other 7) How many hours do you play each week? 0 -2 6 -8 9 - 11 8) How much do you spend on staying healthy each week? 9) You should run to stay fit. £ 1 - £ 5 Agree 10) Did you eat a healthy lunch yesterday? 12) If you are unhealthy it is your fault. 3 -5 £ 1 - £ 5 Other: Disagree Yes 0 -2 6 -8 9 - 11 8) How much do you spend on staying healthy each week? 9) You should run to stay fit. No £ 1 - £ 5 Agree 10) Did you eat a healthy lunch yesterday? 11) What will you eat for dinner tonight? Burger Other 7) How many hours do you play each week? 3 -5 £ 1 - £ 5 Cricket Other: Disagree Yes No 11) What will you eat for dinner tonight? Pasta Strongly Agree Pizza Agree Burger Disagree 12) If you are unhealthy it is your fault. Pasta Strongly Agree Pizza Agree Disagree

Questions? Comments? Suggestions? …or have you found a mistake!? Any feedback would be appreciated . Please feel free to email: tom@goteachmaths. co. uk