## The basics of manipulative data graphics and how to recognize them?

1. General misconceptions
2. Logical fallacies
3. Graphic errors
1. Literacy
2. Articulacy
3. Numeracy

Graphicacy?

¯\_()_/¯

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Different competencies

DV

science

humanities

art

engineering

statistics

Misconceptions

"A picture is worth a thousand words"

"Show, don't tell!"

"The data speaks for itself"

Alberto Cairo

How many triangles are on the picture?

0

Gestalt principles

Similarity

Closure

Proximity

Common fate

Continuity

Max Wertheimer

3,4%

Válság

3,4%

2%

Ugyanaz a trend

3,4%

Közmunkások nélkül

7,4%

2%

7,4%

What can be done with unconventional chart types and diagrams?

Misconceptions

"A picture is worth a thousand words"

Diagrammatica = visual argumentation

not just how to see, but how to read

show and tell

"Show, don't tell!"

"The data speaks for itself"

Alberto Cairo

Logical fallacies

1. Cherrypicking

2. Correlation vs. causality

3. False balance

"The truth lies somewhere in between"

4. False conclusion

5. Average

Logical fallacies

7. Opinion

- personal

- public

- authoritative

Graphic traps and errors

Distorsions

Axis tricks

3D pseudo perspectives

Pie charts

Data/Ink ratio

Size

Chartjunk

Distorsion/Graphic manipulation

Axis tricks

Axis tricks

Axis tricks

Axis tricks

Axis tricks

Axis tricks

Axis tricks

Axis tricks

Axis tricks

Axis tricks

3D pseudo perspectives

3D pseudo perspectives

Pie charts

Pie charts

Pie charts

Pie charts

Pie charts

Pie charts

Pie charts

Pie charts

Pie charts

Pie charts

Pie charts

Jastraw-effect

Size

=

2x

=

2x

Data/Ink ratio

Data/Ink ratio

Edward Tufte's principles

Data/Ink ratio

Chartjunks

Chartjunks

How to critique?

How to critique?

Be nice

Don't be aggressive, don't shout

Ask this: "what is the purpose?"

Show alternative versions/solutions

Argument on professional base

Don't use "in my opinion"

Try to understand why he/she choose that solution

How to react to criticizm?

Don't be aggressively defensive

Don't take it an offense

Cooperate

Avoid logical fallacies