Transcript
Page 1: Do Chemists have Chemophobia? An Update

Do Chemists have Chemophobia? An Update

Dr Katherine Haxton@kjhaxton [email protected]

Page 2: Do Chemists have Chemophobia? An Update

Background

August 2013 – oral bite, vicephec 2013 (Liverpool)

May 2014 – students (finally) select projects

September 2014 – June 2015 student projects

June 2015 – RSC ‘Public attitudes to chemistry’ report published (a little too late for the students)

Page 3: Do Chemists have Chemophobia? An Update

Literature

Multiple definitions of chemophobia:

- anxiety about learning chemistry [Eddy, J Chem Ed 2004]

- ignorance about chemistry [Smith J Chem Ed 2008]

“chemical illiteracy” - anxiety about chemicals [Berdosonov J Chem Ed 1999]

“irrational fear of chemicals”

Frequency of ‘chemophobia’ in books – SOURCE: Google ngram viewer

1950 1960 1970 1980 1990 2000 2010

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RSC Attitudes – UK ‘Public’Chemists are approachable – 88%Chemists make valuable contribution to society – 84%Where do chemists work?: pharmacies (76%), laboratories (49%), hospitals (29%), pharma (17%), med reseearch (17%)http://www.rsc.org/campaigning-outreach/campaigning/public-attitudes-chemistry/ #chemperceptions

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Tale of Two Students – Zaynah & Harriet

Very ‘different’ to previous research experiencesNew methods – focus groups, interviews, questionnaires

Ethics! [3 or 4 rounds with ethics panel per project]

Subjective research (which conflicts with chemistry’s objective approach)Most useful data was from questionnaires

Must challenge personal conceptions

Limited peer-reviewed literature available

Challenging to supervise and mark

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Terminology

aspir

in

acety

lsalic

ylic a

cid

2-ace

tylbe

nzoic

acid

water

dihyd

rogen

mon

oxide

00.5

11.5

22.5

33.5

Rate these substances 1 = Safe,3 = neutral, 5 = Unsafe

Ave

rage

of r

espo

ses

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Aspirin and Related

2-acetylbenzoic acid

acetylsalicylic acid

aspirin

0% 10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

safe fairly safe neutralfairly unsafe unsafe

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Aspirin: Known or Unknown

ABA unknown

ABA known

ASA unknown

ASA known

aspirin known

0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%

Safe fairly safe neutral fairly unsafe unsafe

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Water vs Dihydrogen Monoxide (DHMO)

DHMO known

DHMO unknown

Water known

Water unknown

0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%

safe fairly safe neutral fairly unsafe unsafe

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Is water a chemical?

scientist

non-scientist

0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%

YES ambiguous NO

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“That would depend on what context the definition is being used for. Technically a water is a chemical

compound - it's got a chemical formula of H2O and is formed via chemical bonds. But most of the

time, no, I wouldn't classify water as a chemical. It's safe and nontoxic and I don't think of

something I would use to wash off lab equipment as a chemical, really. Kind of like how by the technical definition a tomato is a fruit but you

wouldn't put it in a fruit salad.” - non-scientist

Is water a chemical? Please explain:

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“No. I suspect that, technically, it is one - but I would use the word 'chemical' in everyday speech to imply something

potentially harmful or artificial - in relation to drugs, cleaning materials,

food additives, etc.” - scientist

Is water a chemical? Please explain:

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None

GCSE

A Level

Degree

Post Degree

0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%

Natural chemicals are safe

Strongly agree agree neutraldisagree strongy disagree

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None

GCSE

A Level

Degree

Post Degree

0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%

Man-made chemicals are dangerous

Strongly agree agree neutraldisagree strongy disagree

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Conclusions

Small sample sizes but interesting results

Challenging but worthwhile style of project to run

Further studies - investigate conceptions around the word ‘chemical’ - does chemistry education make a difference? - impact of chemical language on assessment of safety (implications for laboratories)

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Acknowledgements: Zaynah Farak and Harriet Holt,

Dr Lisa Lau (Chair of School Ethics Panel), Dr Rob Jackson, Dr Richard Darton