Introduction
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        From an instructor's point of view there are other advantages: (1) Presently the typical laboratory is established through the purchase of a package of computer programs written in unalterable code. Our programs will be alterable by anyone willing to learn the basics of Authorware® and as alterations are made and new programs written, they can be added to the PsychExps library of experiments. Even for instructors who use experiment-generator software and thus are able to alter their existing library of experiments, there will be the advantage of sharing in a wider community of developers because the world of Authorware® programmers will always be larger than the world of MEL, ERTS, or PsyScope programmers. Moreover, the experiment generator products cannot be run from Internet sites. (2) Program development will not have to wait on equipment money, because programmers writing programs for the network can safely assume that students will have access to near state-of-the art computers to use for data collection (i.e., the school's network access computers). If the programs were to be implemented on computers purchased and maintained by departments, this assumption would seldom be true. (3) Having a single program source (the Web server) will save time in implementing new versions of programs and eliminate "version-confusion."(4) The absence of machine-imposed programming constraints means that the programs in the PsychExps library can aspire to be ones that exploit the latest multimedia features of computers and thereby maintain a state-of-the-art-look that is important for generating user interest and giving face validity to laboratory experiences.