There is considerable research on the difficulties students have in conceptualising individual concepts of probability and statistics (see for example, Bryant & Nunes, 2012; Jones, 2005). The unit of work developed for the action research project described in this article is specifically designed to address some of these in order to help…

Often researchers face situations where comparative studies between two or more programs are necessary to make causal inferences for informed policy decision-making. Experimental designs employing randomization provide the strongest evidence for causal inferences. However, many pragmatic and ethical challenges may preclude the use of randomized…

The purposes of this study were to investigate (a) undergraduate students' reasoning about the concepts of confidence intervals (b) undergraduate students' interactions with "well-designed" screencast videos on sampling distributions and confidence intervals, and (c) how screencast videos improve undergraduate students' reasoning ability…

Compared to parametric models, nonparametric and semiparametric approaches to modeling nonlinearity between latent variables have the advantage of recovering global relationships of unknown functional form. Bauer (2005) proposed an indirect application of finite mixtures of structural equation models where latent components are estimated in the…

The purpose of this systematic review was to investigate the weight of scientific evidence regarding student outcomes (physical, cognitive and affective) of a Game Centered Approach (GCA) when the quality of a study was taken into account in the interpretation of collective findings. A systematic search of five electronic databases (Sports…

There is currently a considerable diversity of quantitative measures available for summarizing the results in single-case studies. Given that the interpretation of some of them is difficult due to the lack of established benchmarks, the current article proposes an approach for obtaining further numerical evidence on the importance of the results,…

Issues with correlation attenuation due to measurement error are well documented. More than a century ago, Spearman proposed a correction for attenuation. However, this correction has seen very little use since it can potentially inflate the true correlation beyond one. In addition, very little confidence interval (CI) research has been done for…

Investigations of early vocabulary production often employ a single method to measure children's word use. This study examined expressive vocabulary development in children aged 1;0-2;6 years through a combination of picture naming, caregiver report and language sampling. The participants were predominantly exposed to Maltese at home, with…

This paper envisions that, since universities are basically consent organizations university management has an obligation to processes that engender total participation and passion of all employees. This study aimed at delving into management stances at universities. It based on Likert's systems of management, which depict the total organization…

This study examined the perceived value of academic support service types for post-secondary students with learning disabilities in the Christian higher education milieu. Grounded in a model of service utilization (Pescosolido, 1992), the research methodology applied in this study addressed the following research question: What is the perceived…

Learners are the key stakeholders of a school for it to be registered by the Department of Education. However the retention of these learners in Kenya's Secondary Level Education is a great challenge in Kenya. Every secondary school dropout signifies unfulfilled objective, goal and aim for the individual as well as the community at large. The…

Daily activities of forty-eight 8- to 15-month-olds and their interlocutors were observed to test for the presence and frequency of triadic joint actions and deictic gestures across three different cultures: Yucatec-Mayans (Mexico), Dutch (Netherlands), and Shanghai-Chinese (China). The amount of joint action and deictic gestures to which infants…

Survey sampling is fundamentally an applied field. The goal in this book is to put an array of tools at the fingertips of practitioners by explaining approaches long used by survey statisticians, illustrating how existing software can be used to solve survey problems, and developing some specialized software where needed. This book serves at least…

This study investigated the effects and solutions of work and family conflict among female bankers in Accra Metropolis. Using triangulatory mixed method design, a structured questionnaire was randomly administered to 300 female bankers and 15 female Bankers who were interviewed were also sampled by using convenient sampling technique. The…

The purpose of the present study was to examine the effect of instruction through debate on male and female EFL learners' reading comprehension. Also, their perception of critical thinking (CT) instruction was investigated. A quantitative research method with experimental pre-and post-tests design was conducted to collect the data. Eighty-eight…