Executive functions have been defined in the neuropsychological literature as those cognitive processes that underlie future-oriented, goal-directed behavior such as planning, working memory, inhibition, and self-monitoring. Piaget's final stage of cognitive development, formal operations, involves a systematic approach to problem solving that…

In this article the authors demonstrate two instances where the jackknife can be used to enhance hierarchical linear model (HLM) analyses. The jackknife was used to improve the HLM estimates of composite measures by jackknifing over items. The first study examined fixed-effects and variance component estimation. The jackknife appeared to reduce…

This paper describes the research conducted in relating to emotional intelligence of university staff to work attitude. The Emotional Intelligence (EI) Scale devised by Schutte et al. (1998) is used in this study, which is more suitable compared to BarOn Emotional Quotient Inventory. Beside their experiences, knowledge and skills, emotion play an…

The purpose of this study was to examine the relationships among college age student's experiences in close friendship, emotional autonomy and reasons to live. This study was grounded in Attachment Theory and College Student Development. A sample of undergraduate students was drawn from one Southeastern U.S. university. A total of 441 participants…

The purpose of the study was to determine the relationship between teacher perceptions of the frequency and effectiveness of principal instructional leadership behaviors and student achievement in high-poverty elementary schools. In order to accomplish the purpose, survey methodology was employed. Teachers from six high-poverty elementary schools…

This quantitative study analyzed data to find a valid and reliable assessment for progress monitoring also having predictive power of a student's future reading performance on a state-mandated standardized reading achievement evaluation. The Response to Intervention (RTI) model was implemented in the language arts classrooms of a rural middle…

The aim of this study is to explore the possible relationships between the readiness and reading and writing performances of a group of children who are first graders in an elementary school in Turkey. The states of children in terms of school readiness, sound-letter relationships, and phonemic awareness were determined individually during the…

The current research study used a developmental-epidemiological approach to examine the prevalence and impact of multiple risks on educational outcomes for an entire population of second grade children in a low-income, urban public school system. The Kids Integrated Data System (KIDS) provided information about children's entire histories of…

The purpose of this holistic case study with a mixed methods approach was two-fold: first, to investigate the extent to which elementary teachers in the BTSD sustained the use of formative assessment reform to regulate instruction, and second, to explore the factors that promoted fidelity to formative assessment reform. Although this study…

The integrity of phonological representation/processing in dyslexic children was explored with a gating task in which children listened to successively longer segments (gates) of a word. At each gate, the task was to decide what the entire word was. Responses were scored for overall accuracy as well as the children's sensitivity to coarticulation…

The underlying statistical models for multiple regression analysis are typically attributed to two types of modeling: fixed and random. The procedures for calculating power and sample size under the fixed regression models are well known. However, the literature on random regression models is limited and has been confined to the case of all…

The relation between general intelligence (psychometric "g") and temporal resolution capacity of the central nervous system was examined by assessing performance on eight different temporal tasks in a sample of 100 participants. Correlational and principal component analyses suggested a unitary timing mechanism, referred to as temporal "g".…

The greatest limitation in establishing causality in observational studies on the effect of financial aid is the presence of endogeneity or selection bias associated with aid status. To control for this statistical confoundedness that besets the research corpus to date, this study estimates the effect of financial aid on freshmen retention at a…

The purpose of this study was to examine the reliability, validity, and predictive utility of 3 measures for screening kindergarten students for risk for math difficulty (MD). The screening measures assessed number sense and computational fluency, constructs central to typical early mathematical development. Conceptual and operational outcomes…

This study investigated beliefs about HIV/AIDS to find out whether this variable could constitute an obstacle to change in attitudes to sex among undergraduate youths in South West Nigeria. A descriptive research design was adopted. A total of 1,420 undergraduate students in four different universities from four states were sampled. A…