Reading comprehension in adults is a rather neglected variable in the practice of psychological assessment. We propose a new screening instrument for adult reading comprehension based on a pragmatic definition of reading comprehension as the textual understanding of the text read. Using data from a calibration sample (n = 266) and a replication sample (n = 148) for cross-validation, we tested the model fit for the 1-PL model (Rasch-model; graphic model test, Anderson’s Conditional Likelihood-Ratio test). Model fit was established and verified in the replication sample after the stepwise exclusion of three (out of 16) items. Correlations with a test for memory and the external criterion reading proficiency were in the expected direction. The comparison of a sub-group of putatively highly skilled readers (n = 59; University students and lecturers) and putatively low skilled readers (n = 122; participants undergoing psychological assessment for having their driving license reinstated after a ban) showed that a percent rank < 10 in the measure might indicate insufficient reading skills for practical purposes. Pending further research, the instrument seems to be a useful instrument for the screening of reading comprehension skills in adults.