In this study, we examined the impact of covariate measurement error (ME) on the estimation of quantile regression and student growth percentiles (SGPs), and find that SGPs tend to be overestimated among students with higher prior achievement and underestimated among those with lower prior achievement, a problem we describe as ME endogeneity in…

Student growth percentiles (SGPs) express students' current observed scores as percentile ranks in the distribution of scores among students with the same prior-year scores. A common concern about SGPs at the student level, and mean or median SGPs (MGPs) at the aggregate level, is potential bias due to test measurement error (ME). Shang,…

In snowy climates, school superintendents must frequently decide whether an impending storm warrants closing schools for the day. Concerns about student and teacher safety must be weighed against the loss of student learning time, along with state requirements for days of instruction and the cost and inconvenience of extending the school year into…

Research on equating with small samples has shown that methods with stronger assumptions and fewer statistical estimates can lead to decreased error in the estimated equating function. This article introduces a new approach to linear observed-score equating, one which provides flexible control over how form difficulty is assumed versus estimated…

World university ranking systems used the weight-and-sum approach to combined indicator scores into overall scores on which the universities are then ranked. This approach assumes that the indicators all independently contribute to the overall score in the specified proportions. In reality, this assumption is doubtful as the indicators tend to…

Purpose: The purpose of this study was to investigate whether a shorter language sample elicited with fewer pictures (i.e., 7) would yield a percent grammatical utterances (PGU) score similar to that computed from a longer language sample elicited with 15 pictures for 3-year-old children. Method: Language samples were elicited by asking forty…

It is widely believed that subscores can give us more information about an examinee. Thus they can be useful in planning instructional and remedial efforts, or making vocational or academic placement decisions. However, past research has shown that subscores are often not as useful as hoped either because they do not have high reliability or…

The widely used percentage of nonoverlapping data (PND) treatment effect calculation was compared to more recently developed methods which, it has been argued, better account for outlying variables and trend in single-case design (SCD) intervention studies. Percentage of all nonoverlapping data (PAND) and nonoverlap of all pairs (NAP) were…

In a 2-year longitudinal study, we examined the effectiveness of a new technology-infused approach for teaching technology integration (TI) skills to teacher candidates. In the new approach, we infused learning to teach with technology into program methods courses. We measured candidates' understanding of various Technological Pedagogical Content…

School psychologists spend a great deal of time translating assessment results into a psychoeducational report. The importance of creating reports that are both useful and understandable to the readers of the report while also being efficient for the school psychologist cannot be overstated. This study examines parent and teacher perceptions…

In this study was to examine the body composition, flexibility, balance and concentration characteristics of dance exercise. Total of 268 university students whose average age was 20.59 ± 1.59 years were included. Height measurements, body weight measurements, flexibility measurements, balance test, concentration test of the students who had dance…

This article addresses the educational context in which ethnically segregated high poverty schools operate in Chile, and the ways that inequalities within these establishments are understood by members of their administrative and teaching staff. In particular we draw attention to the unwillingness of the majority of these employees to name or…

This study investigated the most effective way to present an instructional video that contains words in the students' second language. Korean-speaking university students received a 16-min video lesson on Antarctica that included English narration (video + narration group), English text subtitles (video + text group), or English narration with…

The aim of this study was to measure the impact of the overall school facility condition for traditional Colorado elementary schools, according to Colorado's Facilities Conditions Index (FCI), on student achievement, as measured by the Colorado Student Assessment Program (CSAP). Control variables included Special Education (SPED), English Language…

This study aims at investigating the relationship between pre-service primary school teachers' attitudes towards digital technology and digital citizenship scale levels. The research was designed in descriptive survey model. The data collection tools were "Attitude Scale for Digital Technology" (ASDT) developed by Cabi (2016) and…