Technical
“The change could be caused by the spray, or there may be some other factor that differentially affects the treatment area compared to the control”
designs, and determining how monitoring results will be used, are more likely to succeed over the long term. An effective monitoring protocol will provide more than a detailed description of field methodology. Careful documentation of the questions being asked; the sampling framework and survey design; procedures for collecting, managing, and analysing the data; and expectations on how the data will be presented and used,
are all part of a successful monitoring programme. All of these points can also be useful in assessing whether or not a particular activity is, in fact, monitoring or something else entirely different, such as survey or surveillance. Our records have the potential to warn, counsel, advise, prompt or remind, but only if implemented through effectively designed rigorous monitoring schemes employing an evidence-based
approach. The next time you see the word ‘monitoring’ used in a management context, test it to see if it really is - is there a specific question to be answered? Is there a repeatable methodology collecting data which are capable of answering the question, and are there trigger points that can result in action?
Article written by John Handley, Technical Sales Adviser, Maxwell Amenity
0 A No monitoring
Management Actions: Survey, Surveillance, Monitoring and Research Number of management treatments D
BC
Post monitoring only
-no control -no replication
SPRAY SPRAY
Pre & post monitoring -no control -no replication
SPRAY
Pre & post monitoring
-control & treatment -no replication
SPRAY E
Pre & post monitoring
-control & treatment -minimum replication
SPRAY
Many F
Pre & post monitoring
-control & treatment -good replication
SPRAY
T After
T
T
T Before After
T C Before
C T After
T C T C T C Before
C T C T C T After
T C T C T C T C T C T C
C T C T C T C T C T C T Before
Survey - one-off event not capable of detecting change
T
Surveillance - a repeated survey capable of
detecting change = Unit where treatment is applied C = Control unit A comparison of monitoring and research approaches for detecting a treatment effect from a prescribed spray APRIL/MAY 2012 PC 129
Monitoring - cause and effect cannot be statistically inferred
T C T C T C T C T C T C
C T C T C T C T C T C T After
Research - cause and effect can be statistically inferred
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