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COVID-19 National Longitudinal Phone Survey 2020-2021
Phase 1

Nigeria, 2020 - 2021
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Reference ID
NGA_2020_NLPS_v12_M
Producer(s)
National Bureau of Statistics (NBS)
Collection(s)
High-Frequency Phone Surveys Living Standards Measurement Study (LSMS) Fragility, Conflict and Violence
Metadata
Documentation in PDF DDI/XML JSON
Created on
Jun 05, 2020
Last modified
May 31, 2022
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133166
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Documentation
Questionnaires
COVID-19 National Longitudinal Phone Survey (COVID-19 NLPS) 2020, Baseline Household Questionnaire
Download [PDF, 283.52 KB]
Author(s) National Bureau of Statistics, Nigeria The World Bank
Date 2020-04-01
Country Nigeria
Language English
Download https://microdata.worldbank.org/index.php/catalog/3712/download/49259
COVID-19 National Longitudinal Phone Survey (COVID-19 NLPS) 2020, Round 2 Household Questionnaire
Download [PDF, 260.45 KB]
Author(s) National Bureau of Statistics, Nigeria The World Bank
Country Nigeria
Language English
Download https://microdata.worldbank.org/index.php/catalog/3712/download/49260
COVID-19 National Longitudinal Phone Survey (COVID-19 NLPS) 2020, Round 3 Household Questionnaire
Download [PDF, 374.14 KB]
Author(s) National Bureau of Statistics, Nigeria The World Bank
Country Nigeria
Language English
Download https://microdata.worldbank.org/index.php/catalog/3712/download/49261
COVID-19 National Longitudinal Phone Survey (COVID-19 NLPS) 2020, Round 4 Household Questionnaire
Download [PDF, 373.38 KB]
Author(s) National Bureau of Statistics, Nigeria The World Bank
Country Nigeria
Language English
Download https://microdata.worldbank.org/index.php/catalog/3712/download/49262
COVID-19 National Longitudinal Phone Survey (COVID-19 NLPS) 2020, Round 5 Household Questionnaire
Download [PDF, 361.08 KB]
Author(s) National Bureau of Statistics, Nigeria The World Bank
Country Nigeria
Language English
Download https://microdata.worldbank.org/index.php/catalog/3712/download/49263
COVID-19 National Longitudinal Phone Survey (COVID-19 NLPS) 2020, Round 6 Household Questionnaire
Download [PDF, 344.34 KB]
Author(s) National Bureau of Statistics, Nigeria The World Bank
Country Nigeria
Language English
Download https://microdata.worldbank.org/index.php/catalog/3712/download/49264
COVID-19 National Longitudinal Phone Survey (COVID-19 NLPS) 2020, Round 7 Household Questionnaire
Download [PDF, 342.6 KB]
Author(s) National Bureau of Statistics, Nigeria The World Bank
Country Nigeria
Language English
Download https://microdata.worldbank.org/index.php/catalog/3712/download/49265
COVID-19 National Longitudinal Phone Survey (COVID-19 NLPS) 2020, Round 8 Household Questionnaire
Download [PDF, 326.9 KB]
Author(s) National Bureau of Statistics, Nigeria The World Bank
Country Nigeria
Language English
Download https://microdata.worldbank.org/index.php/catalog/3712/download/49571
COVID-19 National Longitudinal Phone Survey (COVID-19 NLPS) 2020, Round 9 Household Questionnaire
Download [PDF, 354.81 KB]
Author(s) National Bureau of Statistics, Nigeria The World Bank
Country Nigeria
Language English
Download https://microdata.worldbank.org/index.php/catalog/3712/download/49802
COVID-19 National Longitudinal Phone Survey (COVID-19 NLPS) 2020, Round 10 Household Questionnaire
Download [PDF, 315.93 KB]
Author(s) National Bureau of Statistics, Nigeria The World Bank
Country Nigeria
Language English
Download https://microdata.worldbank.org/index.php/catalog/3712/download/50069
COVID-19 National Longitudinal Phone Survey (COVID-19 NLPS) 2020, Round 11 Household Questionnaire
Download [PDF, 350.87 KB]
Author(s) National Bureau of Statistics, Nigeria The World Bank
Country Nigeria
Language English
Download https://microdata.worldbank.org/index.php/catalog/3712/download/50656
COVID-19 National Longitudinal Phone Survey (COVID-19 NLPS) 2020, Round 12 Household Questionnaire
Download [PDF, 335.39 KB]
Author(s) National Bureau of Statistics, Nigeria The World Bank
Country Nigeria
Language English
Download https://microdata.worldbank.org/index.php/catalog/3712/download/50843
Reports
COVID-19 Impact Monitoring, Baseline
Download [PDF, 357.34 KB]
Author(s) National Bureau of Statistics, Nigeria The World Bank
Date 2020-05-01
Country Nigeria
Language English
Download https://microdata.worldbank.org/index.php/catalog/3712/download/49274
Nigeria COVID-19 National Longitudinal Phone Survey (COVID-19 NLPS), Baseline Summary Tables
Download [PDF, 612.8 KB]
Author(s) National Bureau of Statistics, Nigeria The World Bank
Date 2020-06-29
Country Nigeria
Language English
Download https://microdata.worldbank.org/index.php/catalog/3712/download/49275
COVID-19 Impact Monitoring, Round 2
Download [PDF, 433.76 KB]
Author(s) National Bureau of Statistics, Nigeria The World Bank
Date 2020-06
Country Nigeria
Language English
Download https://microdata.worldbank.org/index.php/catalog/3712/download/49276
Nigeria COVID-19 National Longitudinal Phone Survey (COVID-19 NLPS), Round 2 Summary Tables
Download [PDF, 868.1 KB]
Author(s) National Bureau of Statistics, Nigeria The World Bank
Date 2020-07
Country Nigeria
Language English
Download https://microdata.worldbank.org/index.php/catalog/3712/download/49277
COVID-19 Impact Monitoring, Round 3
Download [PDF, 496.11 KB]
Author(s) National Bureau of Statistics, Nigeria The World Bank
Date 2020-07
Country Nigeria
Language English
Download https://microdata.worldbank.org/index.php/catalog/3712/download/49278
Nigeria COVID-19 National Longitudinal Phone Survey (COVID-19 NLPS), Round 3 Summary Tables
Download [PDF, 913.51 KB]
Author(s) National Bureau of Statistics, Nigeria The World Bank
Date 2020-08
Country Nigeria
Language English
Download https://microdata.worldbank.org/index.php/catalog/3712/download/49279
COVID-19 Impact Monitoring, Round 4
Download [PDF, 559.62 KB]
Author(s) National Bureau of Statistics, Nigeria The World Bank
Date 2020-08
Country Nigeria
Language English
Download https://microdata.worldbank.org/index.php/catalog/3712/download/49280
COVID-19 Impact Monitoring, Round 5
Download [PDF, 968.33 KB]
Author(s) National Bureau of Statistics, Nigeria The World Bank
Date 2020-09
Country Nigeria
Language English
Download https://microdata.worldbank.org/index.php/catalog/3712/download/49281
COVID-19 Impact Monitoring, Round 6
Download [PDF, 552.26 KB]
Author(s) National Bureau of Statistics, Nigeria The World Bank
Date 2020-10
Country Nigeria
Language English
Download https://microdata.worldbank.org/index.php/catalog/3712/download/49282
COVID-19 Impact Monitoring, Round 7-8
Download [PDF, 616.2 KB]
Author(s) National Bureau of Statistics, Nigeria The World Bank
Country Nigeria
Language English
Download https://microdata.worldbank.org/index.php/catalog/3712/download/49590
COVID-19 Impact Monitoring, Round 9
Download [PDF, 490.41 KB]
Author(s) National Bureau of Statistics, Nigeria The World Bank
Date 2021-01
Country Nigeria
Language English
Download https://microdata.worldbank.org/index.php/catalog/3712/download/49823
COVID-19 Impact Monitoring, Round 10
Download [PDF, 507.13 KB]
Author(s) National Bureau of Statistics, Nigeria The World Bank
Date 2021-02
Country Nigeria
Language English
Download https://microdata.worldbank.org/index.php/catalog/3712/download/50071
COVID-19 Impact Monitoring, Round 12
Download [PDF, 555.72 KB]
Author(s) National Bureau of Statistics, Nigeria The World Bank
Date 2021-04
Country Nigeria
Language English
Download https://microdata.worldbank.org/index.php/catalog/3712/download/50845
Technical documents
COVID-19 National Longitudinal Phone Survey 2020, Baseline Interviewer Manual
Download [PDF, 764.17 KB]
Author(s) National Bureau of Statistics, Nigeria The World Bank
Date 2020-04-16
Country Nigeria
Language English
Download https://microdata.worldbank.org/index.php/catalog/3712/download/49266
COVID-19 National Longitudinal Phone Survey 2020, Round 2 Interviewer Manual
Download [PDF, 746.84 KB]
Author(s) National Bureau of Statistics, Nigeria The World Bank
Date 2020-06
Country Nigeria
Language English
Download https://microdata.worldbank.org/index.php/catalog/3712/download/49267
COVID-19 National Longitudinal Phone Survey 2020, Round 3 Interviewer Manual
Download [PDF, 971.03 KB]
Author(s) National Bureau of Statistics, Nigeria The World Bank
Date 2020-07
Country Nigeria
Language English
Download https://microdata.worldbank.org/index.php/catalog/3712/download/49268
COVID-19 National Longitudinal Phone Survey 2020, Round 4 Interviewer Manual
Download [PDF, 997.66 KB]
Author(s) National Bureau of Statistics, Nigeria The World Bank
Date 2020-08
Country Nigeria
Language English
Download https://microdata.worldbank.org/index.php/catalog/3712/download/49269
COVID-19 National Longitudinal Phone Survey 2020, Round 5 Interviewer Manual
Download [PDF, 891.13 KB]
Author(s) National Bureau of Statistics, Nigeria The World Bank
Date 2020-09
Country Nigeria
Language English
Download https://microdata.worldbank.org/index.php/catalog/3712/download/49270
COVID-19 National Longitudinal Phone Survey 2020, Round 6 Interviewer Manual
Download [PDF, 902.68 KB]
Author(s) National Bureau of Statistics, Nigeria The World Bank
Date 2020-10
Country Nigeria
Language English
Download https://microdata.worldbank.org/index.php/catalog/3712/download/49271
COVID-19 National Longitudinal Phone Survey 2020, Round 7 Interviewer Manual
Download [PDF, 944.86 KB]
Author(s) National Bureau of Statistics, Nigeria The World Bank
Date 2020-11
Country Nigeria
Language English
Download https://microdata.worldbank.org/index.php/catalog/3712/download/49272
Nigeria COVID-19 National Longitudinal Phone Survey, Basic Information Document
Download [PDF, 950.42 KB]
subtitle Version 6
Author(s) National Bureau of Statistics, Nigeria The World Bank
Date 2021-08
Country Nigeria
Language English
Table of contents 1.0 Introduction ......................................................................................................................... 6

2.0 Sample and Weights ............................................................................................................ 7
2.1 Survey Sample .................................................................................................................. 7
2.2 Survey Weights ................................................................................................................ 8

3.0 Training of Interviewers for the Survey ............................................................................ 10

4.0 Field Work .......................................................................................................................... 10
4.1 Organization of Fieldwork.............................................................................................. 10
4.2 Gift to Households ......................................................................................................... 11
4.3 Pre-loaded Information ................................................................................................. 11
4.4 Respondents................................................................................................................... 11
4.5 Data Monitoring and Evaluation ................................................................................... 11

5.0 Data Management ............................................................................................................. 12
5.1 Computer Assisted Telephone Interview (CATI) ........................................................... 12
5.2 Data Communication System ........................................................................................ 13
5.3 Data Cleaning ................................................................................................................. 13
5.4 Confidential Information ............................................................................................... 13

6.0 Using the Data ................................................................................................................... 13
6.1 File Structure .................................................................................................................. 13
6.2 Merging Datasets ........................................................................................................... 14

7.0 Survey Rounds ................................................................................................................... 14
7.1 Baseline (Round 1) ......................................................................................................... 14
7.1.1 Overview ................................................................................................................. 14
7.1.2 Weights ................................................................................................................... 14
7.1.3 The Survey Instruments .......................................................................................... 15
7.1.4 Description of Datasets .......................................................................................... 16
7.2 Round 2 .......................................................................................................................... 17
7.2.1 Overview ................................................................................................................. 17
7.2.2 Sample .................................................................................................................... 17
7.2.3 The Survey Instruments .......................................................................................... 17
7.2.4 Description of Datasets .......................................................................................... 19
7.3 Round 3 .......................................................................................................................... 20
7.3.1 Overview ................................................................................................................. 20
7.3.2 Sample .................................................................................................................... 20
7.3.3 The Survey Instruments .......................................................................................... 21
7.3.4 Description of Datasets .......................................................................................... 23
7.4 Round 4 .......................................................................................................................... 23
7.4.1 Overview ................................................................................................................. 23
7.4.2 Sample .................................................................................................................... 23
7.4.3 The Survey Instruments .......................................................................................... 24
7.4.4 Description of Datasets .......................................................................................... 26
7.5 Round 5 .......................................................................................................................... 27
7.5.1 Overview ................................................................................................................. 27
7.5.2 Sample .................................................................................................................... 27
7.5.3 The Survey Instruments .......................................................................................... 29
7.5.4 Description of Datasets .......................................................................................... 31
7.6 Round 6 .......................................................................................................................... 32
7.6.1 Overview ................................................................................................................. 32
7.6.2 Sample .................................................................................................................... 32
7.6.3 The Survey Instruments .......................................................................................... 34
7.6.4 Description of Datasets .......................................................................................... 36
7.7 Round 7 .......................................................................................................................... 36
7.7.1 Overview ................................................................................................................. 36
7.7.2 Sample .................................................................................................................... 36
7.7.3 The Survey Instruments .......................................................................................... 37
7.7.4 Description of Datasets .......................................................................................... 39
7.8 Round 8 .......................................................................................................................... 40
7.8.1 Overview ................................................................................................................. 40
7.8.2 Sample .................................................................................................................... 40
7.8.3 The Survey Instruments .......................................................................................... 41
7.8.4 Description of Datasets .......................................................................................... 43
7.9 Round 9 .......................................................................................................................... 43
7.9.1 Overview ................................................................................................................. 43
7.9.2 Sample .................................................................................................................... 43
7.9.3 The Survey Instruments .......................................................................................... 44
7.9.4 Description of Datasets .......................................................................................... 46
7.10 Round 10..................................................................................................................... 47
7.10.1 Overview ................................................................................................................. 47
7.10.2 Sample .................................................................................................................... 47
7.10.3 The Survey Instruments .......................................................................................... 49
7.10.4 Description of Datasets .......................................................................................... 51
7.11 Round 11..................................................................................................................... 52
7.11.1 Overview ................................................................................................................. 52
7.11.2 Sample .................................................................................................................... 52
7.11.3 The Survey Instruments .......................................................................................... 54
7.11.4 Description of Datasets .......................................................................................... 56
7.12 Round 12..................................................................................................................... 57
7.12.1 Overview ................................................................................................................. 57
7.12.2 Sample .................................................................................................................... 57
7.12.3 The Survey Instruments .......................................................................................... 58
7.12.4 Description of Datasets .......................................................................................... 60

Appendix 1: How to Obtain Copies of the Data ........................................................................... 61
Appendix 2: Changes to the Data ................................................................................................. 62
June 2021 .................................................................................................................................. 62
Download https://microdata.worldbank.org/index.php/catalog/3712/download/49273
COVID-19 National Longitudinal Phone Survey 2020, Round 8 Interviewer Manual
Download [PDF, 908.16 KB]
Author(s) National Bureau of Statistics, Nigeria The World Bank
Date 2020-12
Country Nigeria
Language English
Download https://microdata.worldbank.org/index.php/catalog/3712/download/49579
COVID-19 National Longitudinal Phone Survey 2020, Round 9 Interviewer Manual
Download [PDF, 981.25 KB]
Author(s) National Bureau of Statistics, Nigeria The World Bank
Date 2021-01
Country Nigeria
Language English
Download https://microdata.worldbank.org/index.php/catalog/3712/download/49811
COVID-19 National Longitudinal Phone Survey 2020, Round 10 Interviewer Manual
Download [PDF, 878.3 KB]
Author(s) National Bureau of Statistics, Nigeria The World Bank
Date 2021-02
Country Nigeria
Language English
Download https://microdata.worldbank.org/index.php/catalog/3712/download/50070
COVID-19 National Longitudinal Phone Survey 2020, Round 11 Interviewer Manual
Download [PDF, 912.46 KB]
Author(s) National Bureau of Statistics, Nigeria The World Bank
Date 2021-03
Country NIgeria
Language English
Download https://microdata.worldbank.org/index.php/catalog/3712/download/50260
COVID-19 National Longitudinal Phone Survey 2020, Round 12 Interviewer Manual
Download [PDF, 861.4 KB]
Author(s) National Bureau of Statistics, Nigeria The World Bank
Date 2021-04
Country Nigeria
Language English
Download https://microdata.worldbank.org/index.php/catalog/3712/download/50844
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