In this study we evaluated the stability of item parameters and student scores, using the pre-equated (pre-pandemic) parameters from Spring 2019 and post-equated (post-pandemic) parameters from Spring 2021 in two calibration and equating designs related to item parameter treatment: re-estimating all anchor parameters (Design 1) and holding the…

A fundamental premise in assessment is that the underlying construct is equivalent across different groups of students and that this structure does not vary over years. The pandemic has potentially impacted opportunity to learn and disrupted the internal structure of assessments in various ways. Past research has suggested that students tended to…

(Purpose) This study aimed to evaluate the efficacy of Imagine Math by comparing the performance of program users and non-users on the NWEA MAP Growth Math assessment. (Methods) Propensity score matching was utilized to compare statistically similar southeastern U.S. charter school students who used or did not use the Imagine Math program during…

The engage2learn approach to educator support provides an in-person and virtual coaching system that builds capacity and engagement in public schools. Engage2learn hired LXD Research to conduct an independent evaluation and analysis of NWEA Math and Reading data collected during the 2021-2022 school year. The goal was to measure how engage2learn…

Analysis of consistent Zearn Math users and a comparable group of non-users in District of Columbia Public Schools (DCPS) shows that students who used Zearn Math consistently had higher levels of academic growth than similar students with low- or no-usage. This analysis used two quasi-experimental methods, Coarsened Exact Matching (CEM) and fixed…

The report brief describes district-level ACT test results for AISD students in the 2015-2016 school year.

Idaho uses the English Language Arts and Mathematics tests from the Smarter Balanced Assessment Consortium (SBAC) for the Idaho Standard Achievement Tests. ISAT results have been reported almost exclusively as "percent proficient or above" statistics (i.e., the percentage of Idaho students who performed at the "A" level). This…

In education research, statistical significance and effect size are 2 sides of 1 coin; they complement each other but they do not substitute for each other. This descriptive study, however, was limited to effect size only because years of experience with Idaho statewide student samples of up to 24,000 the rare outcomes has been t-tests with…

This annual report summarizes Austin ISD's English language learner students and the bilingual and ESL programs in which they participated during the 2015-2016 school year. The report includes summaries of data on student demographics, language acquisition, and academic performance.

This report summarizes district Advanced Placement (AP) test results in 2016. AP test results may be used by higher education institutions to place students in courses and extend course credit to students who obtain high scores on the examinations.

The purpose of this Professional Pathways for Teachers (PPfT) evaluation was to examine the measurement validity and reliability of PPfT appraisal data from the 2017-2018 school year in the Austin Independent School District. The PPfT appraisal is a multi-measure system that covers three areas: instructional practices (IP), professional growth and…

This report summarizes the academic performance of students in the Austin Independent School District's bilingual and English as a second language programs during 2018-2019. Students' advanced placement course performance, state academic tests (STAAR and EOC) performance, as well as graduation and dropout rates are summarized.

Austin ISD is one of 21 US urban school districts participating in the National Assessment of Education Progress (NAEP) Trial Urban District Assessment (TUDA). AISD students consistently perform well on the 4th and 8th grade reading and math assessments. This supplemental report summarizes 2015 results. A separate research brief also was…

Idaho uses the English Language Arts and Mathematics tests from the Smarter Balanced Assessment Consortium (SBAC) for the Idaho Standard Achievement Tests (ISAT). ISAT results have been have been reported almost exclusively as "percent proficient" statistics (i.e., the percentage of Idaho students who performed at the "A" level…

This report describes SAT test results for Austin Independent School District (AISD) students in the 2014-2015 school year.