Thank you for your response! I’ve attached a sample of a data set for clarity. Children in our study watch a face change from a neutral expression to one of four emotions over 20 slides. We need to know how quickly each child correctly identifies the emotion (happy, sad, anger, or fear). There are two trials for each emotion. The data file contains a line for each slide presented (20 for each trial). During each trial, participants have multiple opportunities to identify the correct emotion. However, we need to know the first time they correctly identify the emotion for each of the two trials.
In our data set, we are working with 3 variables. One variable identifies the target emotion (ListNameTrial). One variable identifies the slide numbers (slidenumberSubTrial). We have created a third variable indicating whether the child correctly identified the emotion (CorrectEmotionResponse; 1 = correct, 0 = incorrect).
We are interested in averaging the first time the child identified the correct emotion across the 2 trials for that emotion. Any assistance on how we would create this would be great!
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