NORTHERN TERRITORY


DATA QUALITY STATEMENT

In 2011, the Northern Territory (NT) was responsible for one data collection in relation to preschool services, the Age/Grade Census, which collected data using a Unit Record Level (URL) data collection methodology.


Age/Grade Census
The 2011 Age/Grade Census consisted of three components:

• Student Census

• Staff Census

• Preschool Census (Students and Staff).

Institutional Environment
The organisation responsible for the Age/Grade Census was the NT Department of Education and Training (DET). Data for the Age/Grade Census were collected under the Education Act (NT).

Relevance
The data collected from the Age/Grade Census enables reporting on NT schools and the early childhood education and care sector for a variety of reporting requirements. The preschool data collected from this census are used for the National Preschool Census and the Report on Government Services, as well as government budget paper estimates and the NT DET annual report.

Scope: The scope of the Age/Grade Census for the early childhood component of the census consisted of all children enrolled in a preschool program that attended at least once during the four week period prior to the one week reference period (1 – 5 August 2011) at a government and registered non-government preschool.

The scope for data provided on workers included all paid workers employed in government and registered non-government preschools that were registered with the NT Teacher Registration Board. Workers were included irrespective of whether they delivered a preschool program during the reference period.

Coverage: All government and registered non-government preschools participated in the Age/Grade Census, which collected data using a URL data collection methodology. Although the data collection methodology applied to non-government preschools differed to that applied to government preschools, the data collected were at the same level of detail and are comparable to data from government preschools.

Data from Long Day Care centres delivering a preschool program were not within the scope of this collection.
 
Data collection methods:
The 2011 Age/Grade Census collected data using a URL data collection methodology for the following statistical entities:

• Child: Data at the child record level

• Service provider organisation: Data at the service provider record level

• Worker: Data at the worker record level.

Timeliness
The Age/Grade Census is an annual collection and in 2011 was undertaken on 5 August 2011. Information gathered for the Preschool Census component of the collection related to the reference period of 1 August to 5 August 2011. Completion of data processing and validation stages took approximately 2 to 3 months after the collection date, at which time the data were delivered to the ABS.

Data sourced from the Age/Grade Census for the purposes of the National ECEC Collection are published by the ABS in Experimental Estimates of Preschool Education, Australia, 2011 (cat. no. 4240.0).

Accuracy
In 2011 data extracts from the Age/Grade Census of child, teacher and service provider record level information were submitted from each government and some non-government school's Student Administration and Management System (SAMS). Some non-government schools provided data via Excel spread sheets. Additional data were collected through an online survey tool and data from both sources were processed centrally for inclusion in the census collection.

Teacher level data: Teachers were required to provide details on their field of highest qualification relevant to early childhood education and care. NT DET considered all teachers registered in the NT with the NT Teacher Registration Board as four year qualified teachers.

After data were processed by NT DET, service providers were required to check the data, edit if necessary, and confirm accuracy. Business rules guided the processing of data. All three components of the Age/Grade Census required formal sign-off from school principals of the final reported data, stating it was a true and accurate representation of their school at that point in time. This ensured the quality and validity of the data being provided. Internal validation of the Preschool Student Census and Staff Census was undertaken using a system that outlined how to validate and edit data.

Detailed validation processes used by NT DET in 2011 were as follows:

• Schools validation: schools were provided with a validation report through the Business Intelligence Centre and were required to confirm the information was correct

• Performance and data management validation: the validation process included historical comparison of trends, comparison of enrolments and schooling level proportions, cross checking missing data and application of national reporting rules. Schools were also required to carry out validation reporting to maintain data quality, targeting such areas as child Indigenous status, gender and age.

 
Coherence
For the purposes of the National ECEC Collection, data collected through the 2011 NT Age/Grade Census were able to be compared with data collected in 2010, as both collections were undertaken using a URL data collection methodology.

Specific data elements which were collected using methods which did not align with the ECEC National Minimum Data Set (ECEC NMDS) specifications are outlined below and should be taken into account when analysing the data collected. An analysis of the coherence of this collection with other jurisdictional collections should be undertaken on an individual basis, taking into account any data elements that are not consistent with the ECEC NMDS specifications.

5.8 DEVIATION OF COLLECTION FROM THE 2011 ECEC NMDS
Data Element	Details of Deviation
Preschool program enrolment indicator (Child)	The collection of this data element did not align with the ECEC NMDS definition as it is based on the National Schools Statistics Collection definition for enrolment.
Fees charged (Child)	This data element was not available.
Preschool program hours attended (Child)	This data element was not available.
Area of usual residence (CD) (Child)	Geo-coding for some child addresses was less accurate where instances of remote residences or street names were not supplied. For those children in remote localities who did not have an address recorded, the address of the remote preschool was supplied as a proxy.
Date of birth (Child)	Where date of birth was unavailable, it was estimated at 01/01/YYYY.
Geographic location of organisation (CD) (Service provider)	Geo-coding for some remote preschool addresses was less accurate where street address was not supplied.

Counts of Children:
In the collection reference period, it is possible for a child to be concurrently enrolled in and attending two or more preschool programs. In order to address collection requirements, it is important to be able to collate all matching child records.

Children in a Preschool Program in 2011:
For NT, counts of children enrolled in and attending preschool programs in 2011 were able to be derived as data were collected using a URL data collection methodology.

Children in a Preschool Program in the Year before Full-time Schooling:
As NT had two years of comparable data collected using a URL methodology and had a child/client database, counts of children enrolled in and attending preschool programs in the year before full-time schooling were also able to be derived.
 
Interpretability
The NT provided a range of information to assist in the collection and reporting of data, such as manuals and fact sheets, to support correct interpretation and definition of concepts. Detailed reports and instructional papers on the requirements, processes and rules for submitting data through the Age/Grade Census were provided to service providers to assist with data provision.

Accessibility
Data sourced from the Age/Grade Census for the 2011 National ECEC Collection are published at the state and territory level in Experimental Estimates of Preschool Education, Australia, 2011 on the ABS website.

Information Source
The information contained within this report has been sourced from NT DET in consultation with the ABS. Further information is available at the NT DET website: www.det.nt.gov.au.

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