NISS Ingram Olkin Forum: COVID and the Schools: Modeling Openings, Closings, and Learning Loss
By: Megan Kuhfeld
In this National Institute of Statistical Sciences (NISS) Ingram Olkin “Statistics Serving Society” Forum, experts from around the country share statistical and data-analytic challenges they have faced as they have reported on and researched issues around the impact of COVID-19 in U.S. schools. Read more on the forum and presenters on the NISS webpage.See More
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By: Cindy Jiban
Most previous research involving the study of response times has been conducted using locally developed instruments. The purpose of the current study was to examine the amount of rapid-guessing behavior within a commercially available, low-stakes instrument.
By: Steven Wise, J. Carl Setzer, Jill R. van den Heuvel, Guangming Ling
The effect of nonignorable missing data in computerized adaptive test on item fit statistics for polytomous item response models
These studies are conducted based on assumptions under regular conditions for fixed test forms, such as no missing responses and normal distribution of unidimensional ability for a population.
By: Shudong Wang, Hong Jiao
Construct validity and measurement invariance of computerized adaptive testing: Application to Measures of Academic Progress (MAP) using confirmatory factor analysis
This study, using real data, provides empirical evidence of construct and invariance construct of MAP scales across grades at different academic calendars for 10 different states.
By: Shudong Wang, Marth S. McCall, Hong Jiao, Gregg Harris
Validation of longitudinal achievement constructs of vertically scaled computerised adaptive tests: a multiple-indicator, latent-growth modelling approach
The current investigative study uses a multiple-indicator, latent-growth modelling (MLGM) approach to examine the longitudinal achievement construct and its invariance for MAP Growth.
By: Shudong Wang, Hong Jiao, Liru Zhang
In this article, the authors explain how CAT provides a more precise, accurate picture of the achievement levels of both low-achieving and high-achieving students by adjusting questions as the testing goes along. The immediate, informative test results enable teachers to differentiate instruction to meet individual students’ current academic needs.
When New York state released the first results of the exams under the Common Core State Standards, many wrongly believed that the results showed dramatic declines in student achievement. A closer look at the results showed that student achievement may have increased.
By: John Cronin, Nate Jensen
Topics: Measurement & scaling