This article details the results of a written test designed to reveal how education majors construct and evaluate histograms and frequency polygons. Included is a description of the mistakes made by the students which shows how they tend to confuse histograms with bar diagrams, incorrectly assign data along the Cartesian axes and experience…

Although molecular clock theory is a commonly discussed facet of evolutionary biology, undergraduates are rarely presented with the underlying information of how this theory is examined relative to empirical data. Here a simple contextual exercise is presented that not only provides insight into molecular clocks, but is also a useful exercise for…

Previous research has shown that infants match vowel sounds to facial displays of vowel articulation [Kuhl, P. K., & Meltzoff, A. N. (1982). The bimodal perception of speech in infancy. "Science, 218", 1138-1141; Patterson, M. L., & Werker, J. F. (1999). Matching phonetic information in lips and voice is robust in 4.5-month-old infants. "Infant…

The value of professional development continues to be emphasized on educational and governmental levels. Even as this study was being conducted, the U.S. Department of Education launched a $4.35 billion dollar grant that includes improving teacher effectiveness as a core component of the grant's purpose…

This study examines the demographics of SACs and the schools they serve, and proposes that demographic similarity with the school principal influences the SAC membership. The findings draw attention to the likelihood that appointment to SAC chair may be contingent on an individual's demographic similarity with the school principal. Principals also…

Investigated in the current study were gaps between secondary schools and higher education in English curriculum and in general areas, as perceived by South Texas secondary school English teachers. Qualitative analysis yielded seven themes concerning the gaps and six themes concerning suggested initiatives and services. Findings from the study…

In this paper, data from the Baccalaureate & Beyond 93/97/03 survey is used to examine the link between college graduate earnings and the number of years a school has been accredited by AACSB International. We find that there is no monetary benefit to attending an institution of higher learning which has been accredited longer, which suggests…

This study had two primary objectives. First, this study sought to create a classification system to which publicly-controlled Carnegie classified Master's Colleges and Universities could be grouped according to geographical service (rural-serving, suburban-serving, or urban-serving. Second, once the classification system was developed and…

Many univariate statistical methods assume that dependent variable data have a univariate distribution. Some statistical methods assume that the error scores are normally distributed. It is clear that the concept of data normality is an important one in statistics. This paper explains that, notwithstanding common misconceptions to the contrary,…

Studied the sample coefficient alpha for each of the five subscales of the Hopkins Symptom Checklist (HSL; L. Derogaitis and others, 1974) in a sample of 419 adults. Findings show that the normal-theory-based distribution has a systematic bias in describing the behavior of the sample coefficient alpha. (SLD)

This paper is the fourth in a series of national statistical reports on young people aged 12-24 years produced by the Australian Institute of Health and Welfare (AIHW). This report provides the latest available information on how Australia's young people are faring according to national indicators of health and wellbeing. Many young Australians…

Dutch speakers with agrammatic Broca's aphasia are known to have problems with the production of finite verbs in main clauses. This performance pattern has been accounted for in terms of the specific syntactic complexity of the Dutch main clause structure, which requires an extra syntactic operation (Verb Second), relative to the basic…

Standard distributions are ubiquitous but not unique. With suitable scaling, the graph of a standard distribution serves as the graph for every distribution in the family. The standard exponential can easily be taught in elementary statistics courses.

Good quality data is paramount for applied economic research. If the data are distorted, corresponding conclusions may be incorrect. We demonstrate how Benford's law, the distribution that first digits of numbers in certain data sets should follow, can be used to test for data abnormalities. We conduct an analysis of nine commonly used data sets…

The purpose of these modules is to provide an introduction to the world of probability and statistics to accelerated mathematics students at the high school level. The modules also introduce students to real world math concepts and problems that property and casualty actuaries come across in their work. They are designed to be used by teachers and…