Pieter Oosterwijk

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Test authors report sample reliability values but rarely consider the sampling error and related confidence intervals. This study investigated the truth of this conjecture for 116 tests with 1,024 reliability estimates (105 pertaining to test batteries and 919 to tests measuring a single attribute) obtained from an online database. Based on 90% confidence(More)
In our research we utilized the domain of entertainment robotics to educate children on the principles of environmental awareness by playful means outdoors. Our research revolved around the iterative design of Floffy: the environmental robot, which was essentially a playful toy robot that would respond positively to interaction that was beneficial for the(More)
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