22118
27-Aug-13
1 of 3
PEST MONITORING
Describe the use of statistics for
analysing results of possum population
monitoring
level:
4
credit:
2
planned review date:
November 2007
sub-field:
Pest Management
purpose:
This unit standard is for people involved with analysing
results of possum population monitoring programmes carried
out in rural environments.
People credited with this unit standard are able to describe
the use of statistics for analysing results of possum
population monitoring.
entry information:
Open.
accreditation option:
Evaluation of documentation and visit by NZQA, industry and
teaching professional in the same field from another
provider.
moderation option:
A centrally established and directed moderation system has
been set up by the Primary Industry Training Organisation.
special notes:
Definitions
Residual trap-catch (RTC) index – a method of determining
relative possum abundance.
Contract – the monitoring contract that the monitoring
contractor is engaged under. The contract will specify a
range of requirements that have been agreed between the
monitoring contractor and the principal or client. The
principal or client may be a local authority, government
department, or a private organisation.
 New Zealand Qualifications Authority 2016
22118
27-Aug-13
2 of 3
PEST MONITORING
Describe the use of statistics for
analysing results of possum population
monitoring
Elements and Performance Criteria
element 1
Describe the use of statistics for analysing results of possum population monitoring.
performance criteria
1.1
Random and systematic sampling, and stratified and unstratified sampling
design, are described in terms of their relationship, and use in generating an
unbiased RTC index estimate.
1.2
The sampling unit and trap-lines are described in terms of their relationship.
1.3
The effect of improper trap use or setting is described in terms of the statistical
results achieved.
1.4
The mean RTC index is described in terms of its derivation and application.
1.5
A sample of trap-lines is described in terms of the derivation and application of
standard deviation.
1.6
The derivation and interpretation of standard error and subsequent 95%
confidence interval are described in relation to the mean RTC index.
1.7
The effect on confidence in the RTC index estimate is described in terms of
sample size, intrinsic variability among trap-lines, and stratification as measured
by standard deviation.
Comments on this unit standard
Please contact Primary Industry Training Organisation standards@primaryito.ac.nz if you
wish to suggest changes to the content of this unit standard.
Please Note
Providers must be accredited by the Qualifications Authority or a delegated interinstitutional body before they can register credits from assessment against unit standards
or deliver courses of study leading to that assessment.
 New Zealand Qualifications Authority 2016
22118
27-Aug-13
3 of 3
PEST MONITORING
Describe the use of statistics for
analysing results of possum population
monitoring
Industry Training Organisations must be accredited by the Qualifications Authority before
they can register credits from assessment against unit standards.
Accredited providers and Industry Training Organisations assessing against unit standards
must engage with the moderation system that applies to those standards.
Accreditation requirements and an outline of the moderation system that applies to this
standard are outlined in the Accreditation and Moderation Action Plan (AMAP). The
AMAP also includes useful information about special requirements for providers wishing to
develop education and training programmes, such as minimum qualifications for tutors and
assessors, and special resource requirements.
This unit standard is covered by AMAP 0052 which can be accessed at
http://www.nzqa.govt.nz/site/framework/search.html.
 New Zealand Qualifications Authority 2016