A brief overview of the various methodologies used to study second-language acquisition focuses on the particular complexities presented by the interdisciplinary character of the field and its effects on such aspects as theory construction, empirical methodology, epistemological positions, data collection, hypothesis testing, and data…

Reviews concepts of aptitude and aptitude-treatment interaction (ATI) and summarizes lessons learned in ATI research on educational treatments to help ATI research on psychotherapeutic treatments. Research design and data analysis recommendations address aptitude distributions, multivariate aptitude complexes, detective work with scatterplots,…

Discusses aspects of quantitative experimental design to help college science faculty investigate college-level science instruction. (PR)

Describes methods of designing natural resource monitoring programs to provide indications of ecosystem health, define limits of normal variation, identify abnormal conditions, and suggest potential agent of abnormal change. (MDH)

Examines characteristics of educational knowledge produced by educational researchers and considers how this impacts on educational research. Reviews the negative and positive consequences of this structurally egalitarian and substantively divergent knowledge production in education schools. (MMU)

Describes a simple exercise that can be used to demonstrate the concepts of SI units, experimental design, and significant digits in a manner that holds the attention of students who already understand these concepts but is still valuable for students who are less prepared. (CCM)

Highlights effective graphical methods for screening and cleaning data, exploring and identifying models, and displaying data in counseling-psychology publications. Argues that graphs are not ancillary to scientific publications but are essential and, in some cases, sufficient expositions of results. (Author/GCP)

Presents an analysis of 19 studies that apply content analysis techniques to the World Wide Web. Offers how researchers can apply content analysis to the Web with primary focus on formulating research questions/hypotheses, sampling, data collection and coding, training/reliability of coders, and analyzing/interpreting data. (SC)

An analysis of 168 public administration doctoral dissertations revealed substantial improvements over those analyzed in 1990. A substantially higher percentage conducted basic research and reported findings, and more students are using rigorous research designs that involve attention to causal relationships. (Contains 15 references.) (Author/JOW)

Describes and assesses missing data methods currently used to analyze data from matrix sampling designs implemented by the National Assessment of Educational Progress. Several improved methods are developed, and these models are evaluated using an EM algorithm to obtain maximum likelihood estimates followed by multiple imputation of complete data…

If money truly does not matter, and disadvantage cannot be quantified in terms of valuable social or economic goods, then questions of justice become aridly academic. How are resources to be valued? Faulty research design skewed Eric Hanushek's results. More precisely designed studies are revealing relationships between school expenditures and…

Asserts that cross-cultural comparison serves a crucial function as a final test of paradigms emerging from intracultural studies of child and adolescent adjustment and maladjustment. Argues that cross-cultural research's doorkeeper function is best performed when a wide range of cultures is sampled, for which core beliefs are measured directly…

Discusses the effects of sampling scheme selection on the admissibility of log-linear models for multinomial and product multinomial sampling schemes for prospective and retrospective sampling. Notes that in multinomial sampling, marginal frequencies are not fixed, whereas for product multinomial sampling, uni- or multidimensional frequencies are…

Attempts to identify all published empirical evidence regarding art therapy effectiveness, as well as outcome trends associated with study design. Results reveal that three types of study designs produce very similar results regarding the positive effects of art therapy, but their conclusions may appear very different. (Contains 23 references and…

Introduces the chicken wing project in which students assess the microbial contamination of chicken wings for the safety of foods. Uses the colony counting technique and direct wash fluid examination for determining the microbial contamination, and investigates methods to reduce the level of microbial contamination. (Contains 14 references.) (YDS)