Census Evaluation In The Philippines By: Benedicta A. Yabut

Census Evaluation In The PhilippinesCensus Evaluation In The Philippines

By: Benedicta A. YabutBy: Benedicta A. Yabut

2

Outline of PresentationOutline of Presentation

I.I. 2000 Census Evaluation Survey (CES)2000 Census Evaluation Survey (CES)1. Objecives1. Objecives2. Scope and Coverage2. Scope and Coverage3. Sampling Design3. Sampling Design4.4. Enumeration and ProcessingEnumeration and Processing5. Results5. Results

II. 2010 Census Evaluation ProgramII. 2010 Census Evaluation Program1. Progress Monitoring System1. Progress Monitoring System2. Census Evaluation Teams2. Census Evaluation Teams3. Consultative Meeting/Feedbacking3. Consultative Meeting/Feedbacking

2000 Census Evaluation Survey2000 Census Evaluation Survey

Aimed at evaluating the completeness of enumeration, specifically:

a. obtain direct estimates of coverage errors for each of the 15 regions and the provinces of Autonomous Region of Muslim Mindanao (ARMM) and Region XII.

b. quantify the components of coverage errors (omissions and erroneous enumeration).

1.1 ObjectivesObjectives


• approximately 216,000 households in 480 Enumeration Areas (EAs)

• non-movers , in-movers and out-movers were identified

1.2 Scope and Coverage 1.2 Scope and Coverage

• it involved mapping, complete listing and interviewing households in sample areas

• data collected: household head and members, relationship to household head, date of birth, age, sex and presence of overseas workers as well as items which identified non-mover, in-mover and out-mover

• 6 questionnaires were used


• stratified two-stage sampling design with urban and rural areas as strata

• Barangay was the primary sampling unit(PSU) and sample EA as the secondary sampling unit (SSU)

1.3 Sampling Design 1.3 Sampling Design

• in the National Capital Region, 3-stage sampling design was adopted since selection of segment was applied in big EAs

• The domain was region except for ARMM and Region XII, in which province served as the domain


1.3 Sampling Design (Cont’d) 1.3 Sampling Design (Cont’d)

Distribution of Sample EAs by Domain

Domain No. of EAs Domain No. of EAs

NCR 36 Region IX 21CAR 25 Provinces of Region XII 20 each

Region III 36 ARMMRegion IV 50 Lanao del Sur and

Maguindanao18 each

Region V 22 Sulu and Tawi-tawi 18 each

Region VI 21 Other Regions 20 each

Region VIII 21


a. Main Survey – conducted for 17 days after a month of 2000 CPH enumeration

b. Follow-up Survey – follow-up visits conducted upon completion of matching operation to determine final match status of non-matched and possible matched cases

1.4 Enumeration and Processing1.4 Enumeration and Processing


Census Omission rate: 7.2 % for households 9.4 % for population

Coverage error was poorer in urban areas than in rural areas

1.5 Results1.5 Results

Basically, the results were for internal use of NSO;

Census Erroneous Enumeration:erroneously included –1.4% or about 214,000 households; for population it was 2.7% or 2M people


1.5 Results1.5 Results

Net Error Rate

• Net undercount of 5.8% for households and 6.7% for population

• All regions obtained a net undercount

• Net undercount for OCWs was 16.7% while for non-OCWs it was 6.7%

2010 Census of Population and Housing2010 Census of Population and Housing

The PMS is aimed to:

1. monitor the progress of field enumeration/operation.

2. check for over count of households and persons, or undercount or omissions at the earliest stage.

2.1 Progress Monitoring System (PMS)2.1 Progress Monitoring System (PMS)

3. evaluate the coverage of enumeration.


The CPH Form 10 or EN’s Accomplishment/Progress Monitoring Report is the form that will be used to record the total number of households,institutional living quarters (ILQ), male and female household members

and ILQ residents.

Progress Monitoring FormProgress Monitoring Form

EN TS

8. PO staff matches text messages sent to CO vs actual entries in CPH Form10 using PPMS

2. Team Supervisor checks CPH Form 10 for completeness and consistency.

3. Assistant Census Area Supervisor sends CPH Form 10 summary data to C O through SMS.

4. Central Office processes SMS messages received.

7. CO transmits SMS PM data file to PO thru email (every Friday)

6. Generates Progress Report and posts in the web.

5. Stores SMS Messages to database.

RO

Provincial/Regional Office can view the Evaluation and Progress Reports in the website or generate the reports using PPMS.

PO

DSO

9. PO transmits verified and updated SMS PM data file to CO thru email

1. Enumerator Accomplishes CPH Form 10

10. Synchronizes PO file with CO database

CO transmits SMS PM data file to RO thru email

RO instructs PO to investigate questionable counts

PO sends investigation, justification report to RO

cO

ACAS

CAS

CPH Form 10

2010 Census of Population and Housing2010 Census of Population and HousingProgress Monitoring SystemProgress Monitoring System

2010 Census of Population and Housing2010 Census of Population and HousingProgress Monitoring Through SMSProgress Monitoring Through SMS

Registering the cell phone

To register the number of the cell phone type the following

PMREG Aaaaa Ppp Mmm NAME <Firstname Lastname>

Where aaaa - a unique four-digit access code that will be given to each ACAS

during the training

Then send to 09209519297 / 09209454003

PM D Ppp Mmm B E T C HH HP HM HF IP IM IF REM

The system will reply with:


Sending PM Report Summary Data thru Text Messaging

To send data:

PM Dmmdd Ppp Mmm Bbbb Eeeee Ts Ccccc HHnnn HPnnn HMnnn HFnnn IPnnn IMnnn IFnnn

REM

Type:

Send to 09209519297 / 09209454003

For valid text message, the system would reply with:

Rsssss Dmmdd Ppp Mmm Bbbb Eeeee Ts Ccccc HHnnn HPnnnHMnnn HFnnn

IPnnn IMnnn IFnnn REMWhere sssss is a five (5) digit “sms receipt number”


PM - Required keyword needed since the program will filter out all messages that do not start with this.

_ - Space

Dmmdd - month (2 digits) and day (2 digits)

Ppp - province code (2 digits)

Mmm - municipal code (2 digits)

Bbbb - barangay code (3 digits)

Eeeee - enumeration area (3 digits)

Ts - status of enumeration (1 – on going 2 – completed); 1 digit. If not supplied the default is ‘1’

Ccccc - Computer generated (4 digits) Check Number


HHnnn - Number of household (no maximum digits)

HPnnn - household members (no maximum digits)

HMnnn - Male household members (no maximum digits)

HFnnn - Female household members (no maximum digits)

IPnnn - Optional ILQ residents (no maximum digits)

IMnnn - Optional Male ILQ residents (no maximum digits)

IPnnn - Optional Female ILQ residents (no maximum digits)

REM - Optional in sending remarks in the data


The Three (3) Components of the System

3) Web-based progress monitoring system.

1) PMS Central Office version

2) PMS Provincial/Regional Office version


Central Office version

a) Receive PM text messagesPM text messages are automatically checked if the geographicarea codes are in the EARF (EA reference file) and if the sender’sphone number is consistent with the assigned EAs. The system alsoverifies if the text message has already been received and accepted. Whenerrors are found the system automatically returns a text messageinforming the sender about the problem.

b) Acknowledge valid received PM text messagesIf received PM text message is valid, the system automaticallysend an acknowledgement text message with unique SMS receiptnumber. Data in valid PM text messages were added in the PMdatabase.


Central Office version

c) Generate required reportsOperational and management required reports can be generated.The list of possible reports will be enumerated later in this presentation.

d) Send latest data files to PO/RO

The system automatically sends latest data files to PO/RO on a presetdate and time. Each PO is regularly furnished a copy of the data files.Only those SMS transactions belonging to the province were transmitted. For RO, all transactions belonging to the region were sent.


Provincial/Regional Office versiona) Generate required reports

The system enables the provincial staff to generate the following reports: - Enumeration Area Weekly Report

- SMS Transaction Record - EA Progress Enumeration Report

- Barangay Coverage Report - Data Evaluation Report

b) Browse/Update SMS transaction fileThis module is used to reflect the corrections for erroneous PMtext messages sent.

c) Send updated SMS transaction file to COTo eliminate the error in sending wrong files, the system is designedsuch that transmittal of updated file would be automatic. The system automatically prepares the data file and e-mail it to the central office.


Web-based progress monitoring system

Progress monitoring reports will be posted at the restricted NSO website to allow management and field offices to

monitor the progress of the field operation in their area and for the whole country. These reports will be refreshed every

two hours.

Progress of 2010 CPH can be viewed at:

http://www3.census.gov.ph/pms2010

PMS data files download site - http://www3.census.gov.ph/pms2010/dpms

2010 Census of Population and Housing2010 Census of Population and HousingProgress MonitoringProgress Monitoring Data Quality Check Data Quality Check

Possible sources of errors

6. Sending CPH Form 10 data (text messages) to CO.- sending wrong data (error in typing)- some reports are not sent- some reports are sent more than once

1. Recording of summary counts of male and female in each questionnaire.

2. Transcription of male/female counts from the questionnaire to the Listing Form.3. Addition of counts in the Listing Form. That is, details do not add up to the page totals.

4. Transcription of Listing Form page totals to CPH Form 10.

5. Addition of counts in the CPH Form 10.

2010 Census of Population and Housing2010 Census of Population and HousingProgress Monitoring Data Quality CheckProgress Monitoring Data Quality Check

The PO should match page totals of CPH Form 10 with data sent (PM text messages) and received at the Central Office.

For errors due to mistakes in sending (texting) data in PM reports (CPH Form 10), entries in each PM report should be matched with what were received at the CO. If there are differences, data files should be updated accordingly.

2010 Census of Population and Housing2010 Census of Population and HousingProgress Monitoring Evaluation of ResultProgress Monitoring Evaluation of Result

Provincial OfficeVerify the computed demographic indicators at the city/municipality level whether they fall under the set acceptable range and compare the generatedcounts with result from previous censuses.

Central OfficeWhen the PM generated population counts for the entire province have been evaluated, the PO will transmit the latest updated data file to CO. Tables generated using this file will be used for further evaluation and in-depth analysis to detect anomalies in the resulting demographic indicators.

2010 Census of Population and Housing2010 Census of Population and HousingProgress Monitoring Reports Generated from PMSProgress Monitoring Reports Generated from PMS

b. PM Report 2 - SMS Transaction Record

This report shows the PM text messages accepted at the CO.

a. PM Report 1 – Enumeration Area Weekly Report

This report shows the number of households covered by EN’s per week (CPH Form 10 report).

c. PM Report 3 – EA Progress Enumeration Report

This report shows the status of enumeration in all EA’s.

2010 Census of Population and Housing2010 Census of Population and HousingProgress Monitoring ReportsProgress Monitoring Reports

e. PM Report 5 – Data Evaluation ReportThis report will be used to evaluate the acceptabilityof reported counts in the area.

d. PM Report 4 – Barangay Coverage Report

This report shows the progress of enumeration in all barangaysand municipalities in the province. It can also be used forevaluation of population growth rate at the barangay level.

Progress Monitoring Reports Generated from PMSProgress Monitoring Reports Generated from PMS

2010 Census of Population and Housing2010 Census of Population and HousingProgress Monitoring (for public use)Progress Monitoring (for public use)

The public can inform the Central Office about census non-coverage through SMS or text messaging system.

Text Messaging Format:

NOCENSUS/<NAME>/<HOUSE NUMBER AND STREET>/<BARANGAY>/<MUNICIPALITY>/<PROVINCE>/<LANDMARKS>

Additional Information:

NOCENSUS – keywordNAME – name of senderHOUSE NUMBER AND STREET – house number and streetBARANGAY – barangay nameMUNICIPALITY – municipality namePROVINCE – province nameLANDMARKS – landmarks (near Jollibug, in front of the Church)


2.2 Census Evaluation Teams2.2 Census Evaluation Teams

Composition: Composition:

NSO officials and employees who have demographyNSO officials and employees who have demography

background at the national, regional and provincial officesbackground at the national, regional and provincial offices

Training: Training:

Two levels (Central Office and Regional Offices)Two levels (Central Office and Regional Offices)

2010 Census of Population and Housing2010 Census of Population and HousingCensus Evaluation IndicatorsCensus Evaluation Indicators

Indicators Acceptable/Condition For Verification/consultation

Pop’n Growth Rate (PGR)

Prov/Mun: 0%-3% irrespective of 1995-2000 PGRBarangay: -0.9% to 2% if PGR 1995-2000 <-1.0% -0.9% to 3.5% if PGR 1995-2000

-.9% and up

Prov/Mun: negative and higher than 3%

Barangay:higher than 2% and PGR1995-2000

<-0.9%Not within the range –0.9% to 3.5%

Sex Ratio (SR) Prov/Mun: 91-109Barangay: 88-114

Prov/Mun: below 91 and above 109Barangay: below 88 and above 114

Average household Size (AHS)

Prov/Mun/Bgy: 4.0 to 6.0Inc./Dec.(DIFF=AHST2-AHST1):-1<DIFF<+1

Prov/Mun/Bgy:lower than 4 and higher than 6DIFF are beyond ranges

2010 Census of Population and Housing2010 Census of Population and HousingCensus Evaluation IndicatorsCensus Evaluation Indicators

Indicators Acceptable/Condition For Verification/consultation

Percent Change of Total population (% changeTP)And Household Population (%changeHP)

Prov/Mun/Bgy:

-25%<%changeTP<+25%

-25%<%changeHP<+25%

If %changeTP and %changeHP+/- 25%, expect explanations

Percent Change of Number of Household (%changeNH)

Prov/Mun/Bgy:

-25%<%changeNH<+25%

If %changeNH+/- 25%, expect explanations

Increase in institutional population

Prov/Mun/Bgy: 4.0 to 6.0Increase/Decrease(DIFF=Inst.Pop’nT2-Inst.Pop’nT1):-100<DIFF<+100

Prov/Mun/Bgy:

DIFF are beyond ranges


2.3 Consultative Meetings2.3 Consultative Meetings

Prior to the release of official population counts results will bePrior to the release of official population counts results will be

presented to the concerned Regional and Provincial Directorspresented to the concerned Regional and Provincial Directors

for their concurrencefor their concurrence

THANK YOU

AND

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Census Evaluation In The Philippines By: Benedicta A. Yabut