Scottish Government

Scotland's People:
Results from the 2001 Scottish Household Survey
Volume 6 : Technical Report

Steven Hope

NFO System Three SOCIAL RESEARCH

A SCOTTISH EXECUTIVE NATIONAL STATISTICS PUBLICATION

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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

6. Questionnaire for the 2001 SHS

Appendix 1 - Scottish MOSAIC

The Scottish Executive Statistical Services

List of Tables

Table 2-1 Small EDs encountered in sampling by local authority area: SHS 2001
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 month in which sample was issued, SHS 2001 (based on month of issue, not date of interview)
Table 4-2 Summary of outcomes at issued addresses for the 2001 SHS
Table 4-3 Household response rate, targets and invalid addresses by local authority: 2001 Change in response rates between 1999/2000 and 2001
Table 4-4 Random adult response rate as percentage of valid addresses and of achieved household interviews: SHS 2001
Table 4-5 Weights to account for 'under'/'over' sampling and differences in response rates by local authority by quarter: SHS 2001
Table 4-6 Average weighting factors to adjust for differences in random adult response rates by local authority
Table 4-7 Comparison of weighted and unweighted age and sex profile of 2001 SHS data with GRO(S) estimates
Table 4-8 Comparison of key variables between the 1996 SHCS and the 2001 SHS
Table 4-9 Comparison of key variables relating to driving and transport
Table 4-10 Comparison of the proportion of SHS sampled households in each urban/rural category (plain text) with the proportion of all Scottish households in each category (bold)
Table 4-11 Comparison of economic activity variables among adults of working age
Table 5-1 Design effects and confidence intervals for key variables in 2001 data