Collecting evidence that counts – the rules of evidence

In collecting evidence, PTA applies the rules of evidence to inform the assessment strategy. Assessment strategies have been designed to ensure:


Sufficiency. We ensure the collection of valid assessment evidence in such quantity to ensure that all aspects of competency have been satisfied and that competency can be demonstrated repeatedly. The collection of sufficient assessment evidence will be supported by using a range of assessment methods which lead to the collection of evidence over time based on a range of performances.


Validity. We collect evidence that directly aligns with the components documented within each unit of competency. The collected assessment evidence must replicate the outputs of the task as though it were being performed within an actual workplace. This may include the observation of the candidate performing the tasks relevant to the unit of competency or the collection of a completed workplace products. Assessment evidence that is purely academic in nature should be given a lesser priority to the collection of evidence that relates directly to the candidate performing the tasks indicative to the unit of competency.


Authenticity. We seek evidence that is authentic. To support this, assessors must be assured that the evidence presented for assessment is the candidate’s own work. Where documentary evidence is relied on it must be certified or supported by two other forms of evidence which demonstrate the same skill or knowledge. In all instances, where work is submitted external to PTA (i.e., electronically, distance assignments, online) this is to include a signed authenticity statement by the candidate that they certify the work as their own.


Currency. We must be satisfied that the candidate currently holds the skills and knowledge relating to a particular unit of competency. Assessment evidence is to be based on the candidate’s performance either at the time of the assessment decision or in the very recent past. Questions of evidence currency will mostly relate to recognition of prior learning applications where a candidate has been in the workplace for many years and is seeking recognition of skills and knowledge obtained through workplace experience or previous training. In all situations, assessors must validate the currency of a candidate’s knowledge and skills.

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