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Scottish Crime and Victimisation Survey: Calibration Exercise: A Comparison of Survey Methodologies

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Table 5 - impact of weighting on victimisation rates

Telephone (T1)

Telephone (T2)

Calibration (C1)

Calibration (c2)

2003 SCS (S)

Difference

Difference

Weight

design only

corrective

design only

corrective

(T1-C1)/C1

(T2-C2)/C2

impact

Motor vehicle vandalism

785.4

737.5 -

768.0

720.9 -

825.9

2%

2%

None

Property vandalism

709.6

735.7 +

550.4

543.6 -

830.5

29%

35%

Worse

Theft from motor vehicle

356.2

330.9 -

309.8

291.7 -

407.8

15%

13%

Better

Attempted theft of/from mv

76.2

73.3 -

65.9

62.2 -

125.6

16%

18%

Worse

Theft of mv

35.8

40.8 +

62.6

59.1 -

90.9

-43%

-31%

Better

Bicycle theft

124.9

104.1 -

85.7

89.1 +

131.9

46%

17%

Better

Housebreaking

345.4

357.8 +

263.7

269.9 +

397.5

31%

33%

Worse

Other household theft

512.4

500.9 -

431.8

435.5 +

499.1

19%

15%

Better

Petty assault

705.9

730.0 +

420.2

483.4 +

435.4

68%

51%

Better

Serious assault

69.0

77.7 +

49.3

58.7 +

114.8

40%

32%

Better

Sexual offences

56.2

59.6 +

24.6

25.9 +

1.8

128%

130%

Worse

Theft from person †

384.7

380.0 -

270.3

302.8 +

59.4

42%

25%

Better

Robbery

50.7

50.3 -

15.8

18.3 +

48.4

220%

175%

Better

Other personal theft †

21.9

22.6 +

10.3

11.3 +

260.9

112%

100%

Better

Threats

523.8

535.6 +

283.1

310.3 +

473.2

85%

73%

Better

All property

2945.7

2881.1 -

2537.9

2471.9 -

3309.2

16%

17%

Worse

All personal

1812.2

1855.7 +

1073.7

1210.6 +

1394.0

69%

53%

Better

All offences

4757.9

4736.8 -

3611.6

3682.5 +

4703.2

32%

29%

Better

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Page updated: Thursday, December 22, 2005