The number of project failures and those projects completed over cost and over schedule has been a significant issue for software project managers. Among the many reasons for failure, inaccuracy in software estimation--the basis for project bidding, budgeting, planning, and probability estimates--has been identified as a root cause of a high…

Purpose: The purpose of this paper is to provide an empirical comparison of two measures of school success -- a value-added assessment system and the federally-mandated system of adequate yearly progress (AYP) -- to identify highly effective urban schools in the USA and to explore the predictive relationship between evidence-based decision-making…

This white paper was prepared at the request of the Advisory Committee to the Athletic Study Center as a result of their concern over poor graduation rates in football as released by the NCAA in 2012. The paper received extensive review by the members of that committee as well as several other knowledgeable faculty and senior administrators before…

This paper reports the results of a descriptive study on the use of a technology-enhanced formative assessment system called Accelerated Math (AM) for ELLs and their native-English-speaking (NES) peers. It was comprised of analyses of an extant database of 18,549 students, including 2,057 ELLs, from grades 1 through 8 across 30 U.S. states. These…

This study compared differences in diploma and graduation dropout rates among students with and without disabilities, analyzed differences in various graduation-types by disabilities, and offered recommendations to improve graduation rates through evidence-based practices. The geographic catchment area of this study was limited to twelve Southern…

Inside the globalisation era in which society is immersed, one of the current challenges for any educational system is to provide quality education. While some countries are linguistically homogeneous, many countries and regions display a wealth of linguistic diversity and it is essential to adapt the educational system to those realities. In…

Mothers' spontaneous teaching of their 4-year-olds was observed during block play in 230 dyads from low-income African American, Mexican, Dominican, and Chinese backgrounds. Blocks contained graphics that could be used to teach concepts in literacy, math, construction, or body/color. Coders noted how often mothers taught each of the concepts,…

In this study, a data base containing the responses of 40,000 candidates to 90 multiple-choice questions was used to mimic data sets for 50-item tests under the "nonequivalent groups with anchor test" (NEAT) design. Using these smaller data sets, we evaluated the performance of five linear equating methods for the NEAT design with five levels of…

As a nearly global language, English as a Foreign Language (EFL) programs are essential for people wishing to learn English. Researchers have noted that extensive reading is an effective way to improve a person's command of English. Choosing suitable articles in accordance with a learner's needs, interests and ability using an e-learning system…

Purpose: The purpose of this study was to determine whether children exposed to 2 languages would benefit from the phonotactic probability cues of a single language in the same way as monolingual peers and to determine whether crosslinguistic influence would be present in a fast-mapping task. Method: Two groups of typically developing children…

The purpose of this study is to explore aspects and indicators most commonly used to assess the quality of education systems in different countries through the comparison of 12 national publications describing the state of the educational system. To compare indicators the CIPP model was chosen. This model is organized in four main parts: Context,…

Objective: At present, the most frequently investigated psychosocial intervention for borderline personality disorder (BPD) is dialectical behavior therapy (DBT). We conducted a meta-analysis to examine the efficacy and long-term effectiveness of DBT. Method: Systematic bibliographic research was undertaken to find relevant literature from online…

Context: National databases can be used to investigate diabetes prevalence and health care use. Guideline-based care can reduce diabetes complications and morbidity. Yet little is known about the prevalence of diabetes and compliance with diabetes care guidelines among rural residents and whether different national databases provide similar…

Purpose: To examine the relationships between depression, geographic status, and clinical outcomes following a coronary artery bypass grafting (CABG) surgery. Methods: Using the 2004 Nationwide Inpatient Sample database, we identified 63,061 discharge records of patients who underwent a primary CABG surgery (urban 57,247 and rural 5,814). We…

As the largest international study ever taken in history, the Trend in Mathematics and Science Study (TIMSS) has been held as a benchmark to measure U.S. student performance in the global context. In-depth analyses of the TIMSS project are conducted in this study to examine key issues of the comparative investigation: (1) item flaws in mathematics…