validity

__**Demonstration of Validity in the task**__
 * Validity**
 * Truthful
 * Appropriate
 * Justified
 * Convincing
 * Legally accepted

__Truthful__ __Appropriate__ __Justified__ __Convincing__ __Legally accepted__
 * __Improving Validity__**

The assesment piece in question shows validity through testing students on the steps that need to be taken when determaning the biological father of a child through the use of technology, like gel electrophoesis. The specific steps of this process they have been taught in class and their text book clearly sets these out. Students where to answer questions in the SAC which related to this process and the marking sheme scored them bases on how accurte their answers were and wheither they had determined the correct biological father to the child decribed in a scenario at the begining of the SAC.

In the VCAA assessment handbook, which all year 12 Biology teachers are to follow when designing SACs, it states a number of points which teachers "should" develope an assessment piece that allow students to demonstrate these points. This Task is based on the Task described in the assessment handbook as "Unit 4, Outcome 1, Task 2".

During the perivious week leading upto the SAC, students where prersented by the teacher the criteria sheet which was to be used to mark their assessment. This allowed the student time to look over and set goals to the amount of information that the teacher wanted from them. This opportiumity was given to every student undertaking the SAC.