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88. A scenario-based assessment mimics the way an individual interacts and uses literacy source
material in a more authentic way than in traditional, decontextualised assessments. It presents
students with realistic problems and issues to solve, and it involves the use of both basic and
higher-
level reading and reasoning skills (O’Reilly & Sabatini, 2013).
89. Scenarios make use of the affordances of computer-based assessments, such as the
possibility of introducing stimulus material in a paced sequence, providing feedback to students
and delivering items in a lockstep fashion, in order to provide scaffolding and manipulate difficulty.
Scenarios represent a natural extension of the traditional, unit-based approach in PISA. A
scenario-based approach was used in the PISA 2012 assessment of problem solving and the PISA
2015 assessment of collaborative problem solving. Tasks 2-4 in Appendix B illustrate a sample
scenario with multiple items.
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