This scale measures trait propensity to daydream. To create a composite score for the IPI daydreaming subscale, add all the scores. The minimum score is 12, and the maximum is 60. Higher scores indicate the person is a more habitual daydreamer. More information on scoring can be found in the document below.
Singer, J. L., & Antrobus, J. S. (1972). Daydreaming, imaginal processes, and personality: A normative study. In P. Sheehan (Ed.), The function and nature of imagery (pp. 175–202). New York: Academic.