Curriculum-based measurement in reading (CBM-R) and the Measures of Academic Progress (MAP) are assessment tools widely employed for universal screening in schools. Although a large body of research supports the validity of CBM-R, limited empirical evidence exists supporting the technical adequacy of MAP or the acceptability of either measure for universal screening. Purposes of the current study were to replicate and extend prior research by (a) examining the extent to which CBM-R performance measures more than word reading skills, (b) evaluating the concurrent validity of MAP with CBM-R, (c) determining the potential benefit of administering MAP with CBM-R for universal screening, and (d) examining teachers' acceptability of MAP and CBM-R. Participants included 802 students in Grades 1 to 5 who were administered three CBM-R probes and the MAP during universal screening and 86 elementary teachers who completed a universal screening assessments survey. Results provide evidence of the concurrent validity of MAP with CBM-R and suggest both measures are acceptable to teachers. Implications for research and practice are discussed.