practicing precaution

1

Practicing Precaution

Exploratory Data Analysis

On Case Study Data Questionnaire

Andre Dabrowski

March 8 2005

2

• More a pilot study than a classical designed survey.

• Used either true/false or a 7-point numeric scale.

• Unlike many social surveys, the questions are “uni-directional”.

• 5 “Parts” addressing separate aspects of interest

• Each Part contained several questions on its theme

• A document database was established to record the rater’s assessments of key source documents.

• The goal is to distinguish cases and identify interesting features.

Background

3

• Each case study evaluated by a separate team of raters. The confounding of a rater effect with case effect was unavoidable

• Changes to the original measurement plans introduced .

• Introduce a 0 entry to (1-7) scale indicating “unknown,”

• “2” code in true/false (yes/no) responses for “unknown”

• Now a mixture of qualitative and quantitative measurements

• Assume “0” sits at the left-hand end of the 1-7 scale, and “2” is recoded as “0” (false/no).

• Significant number of questions with missing data or for which all the case studies provided identical responses.

• These questions had to be deleted.

Issues

4

•I2c I2d I3b I4a I4e

•II2a II2b II3 II4a II4b II4c II4d

•III2b III3a III3e III4b III7a III7b III8c III8f III8g III8h III8i III8j III9a III9c III9f III9g III9h III9i III9j III10b III10c III10e III10f III10g III10h III10i III10j III13a

•IV1 IV2_1a IV2_1b IV2_2a IV2_2b IV2_2c IV2_2eb IV5b IV7a IV7b IV8a IV8d IV9b IV9c IV9d

•V5b V6a V6b V10a V10b V14a V14b V14c V14d V14e V14f V19 V20 V21a V21b V21c V21d V22V23a V23c V24b V24c

Questions suppressed from the database due to missing data or constant response across cases.

5

Questions with constant response across cases.

Question

value Question value Question value Question value Question value

I2c 0 I2d 0 I4a 7 I4e 1

II3 1

III3a 7 III3e 1 III4b 7 III8c 0 III8f 0

III8g 0 III9a 1 III9c 0 III9f 0 III9g 0

III10b 0 III10c 0

IV1 0 IV2_1a 0 IV2_2a 1 IV2_2b 1 IV2_2c 1

IV9c 1

V17 0 V22 1 V23a 1 V23c 1 V24b 1

V24c 1

6

Goal: Comparing the cases to each other.

pr ocess

ver t i cal l i nes del i neat e t he Par t s of t he ques t i onnai r e

PLOT COL1 COL2 COL3 COL4

COL1

- 5

- 4

- 3

- 2

- 1

0

1

2

3

4

5

i ndex

0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150

summed pr ocess

ver t i cal l i nes del i neat e t he Par t s of t he ques t i onnai r e

PLOT pes t fi sh gmo f r s t

pes t

- 200

- 100

0

100

200

i ndex

0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150

7

summed pr ocess - - par t I I - - Uncer t ai nt y

I I . 1 i s cat egor i cal The f our r egi ons ar e f or ques t i ons I I . 1, I I . 5, I I . 6 and I I . 7

PLOT pes t _ I I fi sh_ I I gmo_ I I f r s t _ I I

pes t _ I I

- 30

- 20

- 10

0

10

20

30

i ndex

0 10 20 30

summed pr ocess - - par t I I I - - Pr ecaut i onar y Pr i nci pl e

Ques t i ons I I I . 1, 2, 8, 9 and 10 ar e cat egor i cal

PLOT pes t _ I I I fi sh_ I I I gmo_ I I I f r s t _ I I I

pes t _ I I I

- 80

- 60

- 40

- 20

0

20

40

60

80

100

i ndex

30 40 50 60 70 80 90 100

summed pr ocess - - par t I V - - Adapt i ve Management

Ques t i ons I V. 2 i s cat egor i cal r egi ons= I V. 2( d, ea) | 3a- h| 4a- f | 5a, c- i | 6a- f | 7cde| 8bc| 9ae

PLOT pes t _ I V fi sh_ I V gmo_ I V f r s t _ I V

pes t _ I V

- 60- 50- 40- 30- 20- 10

0102030405060

i ndex

90 100 110 120 130 140

summed pr ocess - - par t V - - Law Val ues and Assessment

Al l ques t i ons ar e cat egor i cal . Unknown " 2" r ecoded as " 0" r egi ons= V1| | 2| 3| 4| 5a| 7| 8| 9| 11| 12| 13| 15| 16| 17| 18| 23b| 24a

PLOT pes t _ V fi sh_ V gmo_ V f r s t _ V

pes t _ V

- 5

- 4

- 3

- 2

- 1

0

1

2

3

4

5

i ndex

132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147

8

Goal: Identify interesting features.

Par t I - Admi ni s t r at i ve Set t i ng

St r onger economi c concer ns t han heal t h i n f or es t r y

I heal t h_ econ

- 2

- 1

0

1

case

1pes t 2fi sh 3gmo 4f r s t

Par t I I - Sci ent i fi c Uncer t ai nt y

Two pat t er ns of pat hs vi s i bl e.

PLOT I I 5i nf oavg I I 5l i t _ exper t I I 6uncer t avgI I 6expt _ cncpt I I 7assessavg I I 7al l _ col l

I I 5i nf oavg

- 2

- 1

0

1

2

case



Gr eat er r el i ance on exper t s associ at ed wi t h l ess uncer t ai nt y?

PLOT I I 5l i t _ exper t I I 6uncer t avg

I I 5l i t _ exper t

- 2

- 1

0

1

2

case



Gr eat er concept ual bas i s associ at ed wi t h col l egi al appr oach?

PLOT I I 6expt _ cncpt I I 7al l _ col l

I I 6expt _ cncpt

- 2

- 1

0

1

2

case


9

Goal: Identify interesting features.

Par t I I I - Pr ecaut i onar y Pr i nci pl e

Roughl y t wo gr oups of pat hs .

PLOT I I I docsever i t y I I I 3heal t h_ econI I I 4heal t h_ ot her I I I 4vsbl e_ notI I I 11mod_ ot her s I I I 11bi o_ ot her sI I I 12magar ea_ t emp I I I 13avguncer tI I I 13r egspi r _ econ

I I I docsever i t y

- 2

- 1

0

1

2

case


Par t I I I - Pr ecaut i onar y Pr i nc i pl e

Pes t i c i des separ at es f r om ot her t hr ee.

PLOT I I I docsever i t y I I I 13avguncer tI I I 4vsbl e_ not I I I 12magar ea_ t emp

I I I docsever i t y

- 2

- 1

0

1

2

case


Par t I I I - Pr ecaut i onar y Pr i nci pl e

For es t r y separ at es f r om ot her t hr ee.

PLOT I I I 3heal t h_ econ I I I 4heal t h_ ot herI I I 11mod_ ot her s I I I 11bi o_ ot her sI I I 13r egspi r _ econ

I I I 3heal t h_ econ

- 2

- 1

0

1

2

case

1pest 2fi sh 3gmo 4f r s t

10

Par t I V - Pr i nci pl e of Adapt i ve Management

For es t r y apar t ?

PLOT I V3PAMavg I V4f ol l _ cur r I V6t r i bcomp

I V3PAMavg

- 2

- 1

0

1

2

case


Par t V - Pr ocess and Pr ocedur es

No separ at i on?

PLOT V5avg V5pr oc_ r es t

V5avg

- 2

- 1

0

1

2

case

1pest 2fi sh 3gmo 4f r s t

practicing precaution

Documents