InstantForum 2017-1 FinalMillisecond Forumshttps://forums.millisecond.com/Millisecond ForumsFri, 03 Apr 2026 21:48:33 GMT20https://forums.millisecond.com/Topic17997.aspxHi,<br/><br/>I've done a couple of complete run-throughs of my IAT, but the data output I get each time shows no values for expressions.db . On the other hand, expressions.da is showing values for the compatibletest1, compatibletest2, targetincompatiblepractice, incompatibletest1 and incompatibletest2. Should targetincompatiblepractice be included in the calculations of D?<br/><br/>I am using Inquisit's "IAT with Word Stimuli" template.Thu, 17 Dec 2015 20:51:24 GMTkerryneushttps://forums.millisecond.com/Topic17998.aspxExpressions.da is the d score from just the practice (i.e., first) blocks for both pairings. (compatibletest1 and incompatibletest1)<br/><br/>Expressions.db is the d score from just the test (i.e. second) blocks for both pairings. (compatibletest2 and incompatibletest2)<br/><br/>The raw data files contain the D-scores calculating on a running, trial-by-trial basis in the respective columns. Since D-scores are difference scores, the db column will only contain values once there actually *is* data available from both compatibletest2 and incompatibletest2.<br/><br/>The pure target- and attribute practice blocks do *not* factor into calculating D at all.<br/>Thu, 17 Dec 2015 20:51:24 GMTDave