“…An alignment index of 1 indicates perfect alignment between teacher-reported instruction and the state standards, and an alignment index of 0 indicates a complete lack of alignment, which occurs when none of the topic-and-cognitive-demand pairs emphasized by the teacher are covered by the state standards. This method for calculating alignment based on the SEC is common and has been used in many studies of both instructional alignment and alignment of assessments or instructional materials over the past decades (see, e.g., Fulmer, 2011;Gamoran et al, 1997;Liu & Fulmer, 2008;Ma et al, 2013;Polikoff, 2012aPolikoff, , 2012bPolikoff et al, 2020;Polikoff & Fulmer, 2013;Traynor, 2014). We recognize, however, alignment index values other than 0 and 1 do not have a straightforward interpretation.…”