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Scotland's People: results from the 2001/2002 Scottish Household Survey
Volume 8: Technical Report

Chris Martin, Steven Hope
NFO Social Research

A Scottish Executive National Statistics Publication

This document is also available in pdf format (699k)

Contents

1.Introduction
1.1 Background to the survey

2.Sampling
2.1 Sampling frame
2.2 Accuracy and completeness
2.3 Multiple dwellings
2.4 Overall sample structure
2.5 Primary sampling unit and cluster size
2.6 Procedures for dealing with very small EDs
2.7 Stratification by local authority area
2.8 Stratification within local authority areas
2.9 Procedures for allocating PSUs (and interviewer assignments) evenly throughout the calendar year
2.10 Respondent selection

3.Data collection methods and instruments
3.1 Use of Computer Aided Personal Interviewing (CAPI)
3.2 Questionnaire development and changes
3.3 Fieldwork
3.4 Questionnaire structure, length and content

4.Response rates, achieved sample profile and weighting
4.1 Achieved sample size
4.2 Household response rate
4.3 Random adult response rate
4.4 Achieved sample profile and weighting issues
4.5 Data quality and comparisons with external sources
4.6 Summary of weights required

5.Confidence intervals and complex standard errors

Appendix 1.Scottish Mosaic

Appendix 2.Questionnaire for the 2001/2002 SHS

SCOTTISH EXECUTIVE STATISTICAL SERVICES

List of Tables

Table 2-1 Small EDs encountered in sampling by Local Authority area: SHS 2001/2002
Table 2-2 Projected two-year achieved sample size by local authority area: SHS 2001/2002
Table 2-3 Procedure for allocating PSUs by month of fieldwork
Table 4-1 Achieved interviews by local authority area by quarter in which sample was issued: SHS 2001/2002 (based on quarter of issue not interview)
Table 4-2 Summary of outcomes at issued addresses for the 2001/2002 SHS
Table 4-3 Household response rate, targets and invalid addresses by local authority: 2001/2002 Change in response rates between 1999/2000 and 2001/2002
Table 4-4 Random adult response rate as percentage of valid addresses and of achieved household interviews: SHS 2001/2002
Table 4-5 Weights to account for 'under'/'over' sampling and differences in response rates by local authority by quarter: SHS 2001/2002
Table 4-6 Average weighting factors to adjust for under and over-sampling and differences in random adult response rates by local authority
Table 4-7 Comparison of weighted and unweighted age and sex profile of 2001/2002 SHS data with Census estimates
Table 4-8 Comparison of household types in the 2001/2002 SHS and the 2001 Census
Table 4-9 Comparison of key variables between the 2001 Census, 1996 SHCS and the 2001/2002 SHS
Table 4-10 Comparison of key variables relating to driving and transport
Table 4-11 Comparison of ethnicity questions and responses
Table 4-12 Comparison of urban/rural classification Scotland (bold) and SHS 2001/2002 (plain text)
Table 4-13 Comparison of economic activity variables among adults of working age
Table 5-1 Design factors and confidence intervals for key variables in 2001/2002 data
Table A: Descriptors of MOSAIC Areas Appendix 1-2

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