Since the standards-based education movement began in the early 1990s, mathematics education reformers have developed and evaluated many interventions to support students in mastering more rigorous content. We conducted a systematic review and meta-analysis of U.S. PreK-12 mathematics intervention effects from 1991 to 2017 to study sources of…

Electronically assisted survey techniques offer several advantages over traditional survey techniques. However, they can also potentially introduce biases, such as coverage biases and measurement error. The current study compares the relative merits of two survey distribution and completion modes: email recruitment with internet completion; and…

This paper presents an educational, experimental research design, aiming at examining the effect of "PAD + microlectures" EAP teaching model on Chinese undergraduates' critical thinking development. It mainly analyzes this experiment from four aspects: research question and hypotheses, difficulties in key term definitions and selection…

This paper presents a non-parametric imputation technique, named random forest, from the machine learning field. The random forest procedure has two main tuning parameters: the number of trees grown in the prediction and the number of predictors used. Fifty experimental conditions were created in the imputation procedure, with different…

Language teachers of the future, our current students, live in an increasingly technology-rich world. However, language students do not necessarily see their own digital practices as having relevance for guiding language learning. Research in the fields of CALL and language education more generally indicates that teaching practices change slowly…

We tested the effects of teaching reading skills through U.S. history content for 38 eighth-grade poor readers whose reading ability ranged from second-to fourth-grade levels. Half of the students received special education services, and half of the students were English language learners. Students were taught to decode multisyllabic words, learn…

The purpose of this study was to evaluate the effectiveness of group testing as a pedagogical technique to enhance learning in a difficult subject such as statistics. Individual test scores were compared to their group test scores for the same, identical test. A t test was used to compare the scores for 157 randomly selected MBA students enrolled…

We tested the effects of teaching reading skills through U.S. History content for 38 eighth-grade poor readers whose reading ability ranged from 2nd to 4th grade levels. Half of the students received special education services and half of the students were English Language Learners. Students were taught to decode multisyllabic words, learn…

Maintaining standards over time is a much debated topic in the context of national examinations in the UK. This study used a pilot method to compare the demands, over time, of two examination units testing administration. The method involved 15 experts revising a framework of demand types and making paired comparisons of examinations from…

Results on human performance on the Traveling Salesman Problem (TSP) from different laboratories show high consistency. However, one exception is in the area of individual differences. While one research group has consistently failed to find systematic individual differences across instances of TSPs (Chronicle, MacGregor and Ormerod), another…

The goal of this article is to frame some new directions to social comparison research in organizational settings. Four themes are developed. First, we examine the role of organizational variables in shaping the basic sub processes in social comparison, such as the selection of referents. The second theme focuses on the meaning of level of…

This personal reaction to Cummings'"Comparison of Three Algorithms for Analyzing Questionnaire-Type Needs Assessment Data to Establish Need Priorities" specifically questions Cummings' use of the Mean Difference Analysis for comparison with Weighted Needs Index, and his focus on characteristics of the statistic that are of secondary…

It was hypothesized that, when compared to the Angoff method (W. H. Angoff, 1971), the Nedelsky method (L. Nedelsky, 1954) for standard setting had lower intrajudge inconsistency, lower cutscores, and lower cutscores especially for items presenting challenges to the judges. These hypotheses were tested and supported in a sample of 22 graduate…

A comparison is presented of alternate-choice and true-false item forms used in an undergraduate natural science course. The alternate-choice item is a modified two-choice multiple-choice item in which the two responses are included within the question stem. This study (1) compared the difficulty level, discrimination level, reliability, and…

This study focused on linguistic analyses used in the PIF Project (Project in Error Analysis, Interlanguage Studies and Contrastive Linguistics), an ongoing study of learner language and a project in foreign language pedagogy. For the project, 120 Danish learners of English were divided into 12 groups representing different Danish educational…