DMDX Help.
Input Overview.
There are multiple different ways for
DMDX to record a subject's data beyond Dmastr's original simple RT (reaction time) switch
closure mode. DMDX can take input from numerous
devices including sounds cards for vocal
responses. Originally back in the PDP-11 days data was stored in a
binary array written to disk as a .DTP
file with a quite limited range of item numbers and RTs only up to 32 seconds.
DMDX's predecessor DMTG introduced the
.AZK file format that is now the default
output file format where item
numbers are valid to 9 digits and RTs to days. However the .AZK file
format is still a simple RT data format, to handle more elaborate input modes
the .ZIL file format is used to
store zillions of responses. When zillions of responses are used the
standard DMDX data analysis package Analyze.exe is no longer usable as it only
reads .AZK files, all data will have to analyzed by the user. Also when
zillion responses are used all key press and release data is stored unless
deliberately limited.
Zillion responses come with several different modes, one designed to
facilitate ratings, another
designed to facilitate typed responses.
Looking time studies are possible.
DMDX Index.