The test administrators were doctoral and masters
students from the College of Public Health Science and
Faculty of Psychology, Chulalongkorn University. All
examiners were trained during three separate sessions
at least 3 times prior to test administration with the
children. The training scheme included a brief introduction
to neurobehavioral tests, purpose of each test, and
demonstration of proper test administration. During the
second training session, the tester practiced the test with
their colleagues. They were taught how to troubleshoot
the test administration, and what they should say in response
to subject performance and questions during the
test. For example, they were instructed not to indicate if
an answer was “correct” or “wrong”, but instead to use
phrases such as “go on”, “keep trying”, “try more” to
encourage the child’s persistence with the test.