Scoring the IAT (case 12779)

[sbvick]

Thanks so much for posting the spss syntax to score the IAT using DirectRT data. My one question is about the format of the data file that works with this syntax. Does it assume that the file is organized such that each row of data represents one case (participant) or does it read the file as it is recorded within DirectRT (multiple rows per case)?

If it is the former, I could use some guidance as to how to transform the files. I've looked at the description in the DirectRT Help menu but I find it rather vague. Does anyone have an example of spss syntax you've used to transform the file and/or a data file that shows how this DirectRT IAT data is supposed to look before it is scored? I'm working with the 2006 version of DirectRT (I believe).

[jarvis24]

I don't but maybe one of our users could comment on this?

[jarvis24]

[edited from support email]

I was wondering if you could confirm whether when running an IAT on DirectRT if it records the response time with a built in error. That is, if a participant hits the incorrect response key (makes an error) does that reaction time get recorded, or does the reaction time captured by the program continue until the correct response key is hit?

The recorded response time is that of the correct answer--as measured from the start of the trial (i.e., stimulus onset).

[melmarie32]

Does anyone have SPSS syntax to score the Direct RT race IAT when only the test trials are recorded?