Final answer:
There is a negative correlation between impulse control and accuracy scores on the Stroop test, where better impulse control is associated with higher accuracy scores and vice versa.
Step-by-step explanation:
The expected correlation between impulse control and accuracy scores on the Stroop test, based on the lecture "Brain and Hormones", is most likely a negative correlation. This is because efficient impulse control is necessary to perform well on the Stroop test, which requires the participant to suppress the automatic reading of words in order to name the ink color that the word is printed in.
Therefore, as impulse control increases, we would expect to see an increase in accuracy scores. Conversely, a decrease in impulse control would likely lead to a decrease in accuracy scores on the Stroop test.