People don’t always say what’s on their minds. One reason is that they are unwilling. For example, someone might report smoking a pack of cigarettes per day because they are embarrassed to admit that they smoke two. Another reason is that they are unable. A smoker might truly believe that she smokes a pack a day, or might not keep track at all. The difference between being unwilling and unable is the difference between purposely hiding something from someone and unknowingly hiding something from yourself.
The Implicit Association Test (IAT) measures attitudes and beliefs that people may be unwilling or unable to report. The IAT may be especially interesting if it shows that you have an implicit attitude that you did not know about. For example, you may believe that women and men should be equally associated with science, but your automatic associations could show that you (like many others) associate men with science more than you associate women with science.
We hope you have been able to take something of value from the experience of taking one or more of these tests. The links above will provide more information about the IAT and implicit attitudes; we will periodically update the information to reflect our current understanding of the unconscious roots of thought and feeling.