To create your datasource, follow these steps:

• Open Excel and input the data below
• For this experiment, we want to know if people can identify whether the cat is asleep or awake
• We need a unique identifier for each trial
• We need the image to display for each trial, so we need to enter an image name, including the file extension (e.g, jpg, bmp, png, etc.)
• We need to enter what condition the trials are in
• Every participant will see all trials
• Finally, save the file as a tab-delimited text file