Digit Span Tester
A Task / Test of Working Memory for Cognitive / Neurosciece Research
...FINAL VERSION: If you want more features, download the source and hack it yourself.
Apologies to those who've asked for help and got no response -- I lost my password, and wasn't able to log in for years. THIS IS AN OLD PROJECT, started for practice, and can be buggy on some systems; the code is messy and the design may be simplistic in ways.