The study reported in this paper developed and evaluated a web-based concep
t map testing system for science students. Thirty-eight Taiwanese high scho
ol students were involved and it was found that their performance on the sy
stem was not significantly related to their achievement as measured by trad
itional standard tests. Their views about the use of the system, in general
, were positive. An analysis of students' future use of the system and thei
r motivation and learning strategies revealed that those with more critical
thinking metacognitive activities and an effort regulation management stra
tegy showed more willingness to use the online testing system. Moreover, st
udents with high test anxiety showed a preference to be tested through the
system.