Census Evaluation In The Philippines

1
Census Evaluation In The Philippines By
Benedicta A. Yabut
2

• Outline of Presentation
• 2000 Census Evaluation Survey (CES)
• 1. Objecives
• 2. Scope and Coverage
• 3. Sampling Design
• 4. Enumeration and Processing
• 5. Results
• II. 2010 Census Evaluation Program
• 1. Progress Monitoring System
• 2. Census Evaluation Teams
• 3. Consultative Meeting/Feedbacking

2
3
2000 Census Evaluation Survey
1.1 Objectives
Aimed at evaluating the completeness of
enumeration, specifically

1. 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).
4
2000 Census Evaluation Survey
1.2 Scope and Coverage

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

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

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

• 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

5
2000 Census Evaluation Survey
1.3 Sampling Design

• 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)

• 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

6
2000 Census Evaluation Survey
1.3 Sampling Design (Contd)
Distribution of Sample EAs by Domain Distribution of Sample EAs by Domain Distribution of Sample EAs by Domain Distribution of Sample EAs by Domain
Domain No. of EAs Domain No. of EAs
NCR 36 Region IX 21
CAR 25 Provinces of Region XII 20 each
Region III 36 ARMM
Region IV 50 Lanao del Sur and Maguindanao 18 each
Region V 22 Sulu and Tawi-tawi 18 each
Region VI 21 Other Regions 20 each
Region VIII 21
7
2000 Census Evaluation Survey
1.4 Enumeration and Processing

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

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

8
2000 Census Evaluation Survey
1.5 Results
Basically, the results were for internal use of
NSO

• Census Omission rate 7.2 for households
• 9.4
  for population

• Coverage error was poorer in urban areas than in
  rural areas

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

9
2000 Census Evaluation Survey
1.5 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

10
2010 Census of Population and Housing
2.1 Progress Monitoring System (PMS)
The PMS is aimed to
1. monitor the progress of field
enumeration/operation.

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

3. evaluate the coverage of enumeration.
11
2010 Census of Population and Housing
Progress Monitoring Form
The CPH Form 10 or ENs Accomplishment/Progress
Monitoring Report is the form that will be used
to record the total number of households, institut
ional living quarters (ILQ), male and female
household members and ILQ residents.
12
2010 Census of Population and Housing
Progress Monitoring System
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.
1. Enumerator Accomplishes CPH Form 10
CPH Form 10
8. PO staff matches text messages sent to CO vs
actual entries in CPH Form10 using PPMS
4. Central Office processes SMS messages received.
7. CO transmits SMS PM data file to PO thru email
(every Friday)
9. PO transmits verified and updated SMS PM data
file to CO thru email
5. Stores SMS Messages to database.
RO instructs PO to investigate questionable counts
PO sends investigation, justification report to RO
CO transmits SMS PM data file to RO thru email
Provincial/Regional Office can view the
Evaluation and Progress Reports in the website or
generate the reports using PPMS.
10. Synchronizes PO file with CO database
6. Generates Progress Report and posts in the
web.
13
2010 Census of Population and Housing
Progress Monitoring Through SMS
Registering the cell phone
To register the number of the cell phone type the
following
PMREG Aaaaa Ppp Mmm NAME ltFirstname Lastnamegt
Where aaaa - a unique four-digit access code
that will be given to each ACAS
during the training
Then send to 09209519297 / 09209454003
The system will reply with
PM D Ppp Mmm B E T C HH HP HM HF IP IM
IF REM
14
2010 Census of Population and Housing
Progress Monitoring Through SMS
Sending PM Report Summary Data thru Text Messaging
To send data
Type
PM Dmmdd Ppp Mmm Bbbb Eeeee Ts Ccccc HHnnn
HPnnn HMnnn HFnnn IPnnn IMnnn IFnnn REM
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
REM
Where sssss is a five (5) digit sms receipt
number
15
2010 Census of Population and Housing
Progress Monitoring Through SMS
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
16
2010 Census of Population and Housing
Progress Monitoring Through SMS
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
17
2010 Census of Population and Housing
Progress Monitoring Through SMS
The Three (3) Components of the System
1) PMS Central Office version
2) PMS Provincial/Regional Office version
3) Web-based progress monitoring system.
18
2010 Census of Population and Housing
Progress Monitoring Through SMS
Central Office version

1. Receive PM text messages

PM text messages are automatically checked if the
geographic area codes are in the EARF (EA
reference file) and if the senders phone number
is consistent with the assigned EAs. The system
also verifies if the text message has already
been received and accepted. When errors are found
the system automatically returns a text
message informing the sender about the problem.
b) Acknowledge valid received PM text messages
If received PM text message is valid, the system
automatically send an acknowledgement text
message with unique SMS receipt number. Data in
valid PM text messages were added in the
PM database.
19
2010 Census of Population and Housing
Progress Monitoring Through SMS
Central Office version
c) Generate required reports
Operational 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 preset date 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.
20
2010 Census of Population and Housing
Progress Monitoring Through SMS
Provincial/Regional Office version

1. 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 file
This module is used to reflect the corrections
for erroneous PM text messages sent.
c) Send updated SMS transaction file to CO
To eliminate the error in sending wrong files,
the system is designed such that transmittal of
updated file would be automatic. The system
automatically prepares the data file and e-mail
it to the central office.
21
2010 Census of Population and Housing
Progress Monitoring Through SMS
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
22
2010 Census of Population and Housing
Progress Monitoring Data Quality Check
Possible sources of errors

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

• Transcription of male/female counts from the
• questionnaire to the Listing Form.

• Addition of counts in the Listing Form. That is,
• details do not add up to the page totals.

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

5. Addition of counts in the CPH Form 10.
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
23
2010 Census of Population and Housing
Progress 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.
24
2010 Census of Population and Housing
Progress Monitoring Evaluation of Result
Provincial Office
Verify the computed demographic indicators at
the city/municipality level whether they fall
under the set acceptable range and compare the
generated counts with result from previous
censuses.
Central Office
When 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.
25
2010 Census of Population and Housing
Progress Monitoring Reports Generated from PMS
a. PM Report 1 Enumeration Area Weekly Report
This report shows the number of households
covered by ENs per week (CPH Form 10 report).
b. PM Report 2 - SMS Transaction Record
This report shows the PM text messages accepted
at the CO.
c. PM Report 3 EA Progress Enumeration Report
This report shows the status of enumeration in
all EAs.
26
2010 Census of Population and Housing
Progress Monitoring Reports
Progress Monitoring Reports Generated from PMS
d. PM Report 4 Barangay Coverage Report
This report shows the progress of enumeration in
all barangays and municipalities in the province.
It can also be used for evaluation of population
growth rate at the barangay level.
e. PM Report 5 Data Evaluation Report
This report will be used to evaluate the
acceptability of reported counts in the area.
27
2010 Census of Population and Housing
Progress Monitoring (for public use)
Additional Information
The public can inform the Central Office about
census non-coverage through SMS or text messaging
system.
Text Messaging Format
NOCENSUS/ltNAMEgt/ltHOUSE NUMBER AND
STREETgt/ltBARANGAYgt/ ltMUNICIPALITYgt/ltPROVINCEgt/ltLAN
DMARKSgt
NOCENSUS keyword NAME name of sender HOUSE
NUMBER AND STREET house number and
street BARANGAY barangay name MUNICIPALITY
municipality name PROVINCE province
name LANDMARKS landmarks (near Jollibug, in
front of the Church)
28
2010 Census of Population and Housing
2.2 Census Evaluation Teams
Composition NSO officials and employees who
have demography background at the national,
regional and provincial offices
Training Two levels (Central Office and
Regional Offices)
29
2010 Census of Population and Housing
Census Evaluation Indicators
Indicators Acceptable/Condition For Verification/consultation
Popn Growth Rate (PGR) Prov/Mun 0-3 irrespective of 1995-2000 PGR Barangay -0.9 to 2 if PGR 1995-2000 lt-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 lt-0.9 Not within the range 0.9 to 3.5
Sex Ratio (SR) Prov/Mun 91-109 Barangay 88-114 Prov/Mun below 91 and above 109 Barangay below 88 and above 114
Average household Size (AHS) Prov/Mun/Bgy 4.0 to 6.0 Inc./Dec. (DIFFAHST2-AHST1)-1ltDIFFlt1 Prov/Mun/Bgylower than 4 and higher than 6 DIFF are beyond ranges
30
2010 Census of Population and Housing
Census Evaluation Indicators
Indicators Acceptable/Condition For Verification/consultation
Percent Change of Total population ( changeTP) And Household Population (changeHP) Prov/Mun/Bgy -25ltchangeTPlt25 -25ltchangeHPlt25 If changeTP and changeHP/- 25, expect explanations
Percent Change of Number of Household (changeNH) Prov/Mun/Bgy -25ltchangeNHlt25 If changeNH/- 25, expect explanations
Increase in institutional population Prov/Mun/Bgy 4.0 to 6.0 Increase/Decrease (DIFFInst.PopnT2-Inst.PopnT1)-100ltDIFFlt100 Prov/Mun/Bgy DIFF are beyond ranges
31
2010 Census of Population and Housing
2.3 Consultative Meetings
Prior to the release of official population
counts results will be presented to the concerned
Regional and Provincial Directors for their
concurrence
32
THANK YOU AND
Mabuhay!!!