Addresses the implicit assumption that instructional media represent meaningful experimental variables independent of instructional content or strategy. Results of computer-based instruction (CBI) studies (both well-designed and flawed) and meta-analyses are reviewed to support the authors' position that this assumption is invalid, and new…

Critiques comparative research and evaluation methods used to assess effectiveness of interactive video and proposes alternative models of research design that go beyond comparative analysis into understanding and control of the effective dimensions of interactive video, i.e., controlled correlation; instructional events, cognitive psychology, and…

The problem of the appropriate comparison group for bereavement studies is discussed. The use of the retrospective pretest design is illustrated through a longitudinal study of bereavement outcome following pregnancy loss, involving 138 bereaved women and a comparison group of 215 currently pregnant women. (SLD)

Examines the means of and correlations between perceptions of willingness to communicate, communication apprehension, communication competence, and introversion of college students in the United States and Sweden. Results indicate that the monocultural research on this topic in the United States has limited generalizability. (SR)

Considers claims from sex-comparative research that sex-related differences are small, unusually unstable across studies, very often artifactual, and inconsistent with the content of gender stereotypes. The article contends that feminism created a political climate that has led to research that inaccurately minimizes psychological gender…

This article defends research evaluating similarities and differences in psychometric performances of students with learning disabilities (LD) and students with low achievement (LA), which concluded that psychometric test performance alone was an insufficient basis for differential diagnosis. Recent criticism of the research by Kenneth Kavale and…

This study found that accuracy in predicting the out-of-home placement of children with severe disabilities increased little in a large cross-sectional sample (n=5,992) over a smaller semilongitudinal sample (n=141). Factors such as age, adaptive and maladaptive behavior, and ethnicity are discussed. (Author/JDD)

Describes the problem of absence of evidence in historiography. Discusses the limits this lack of evidence poses for comparative studies by sociologists. Identifies steps in which events or evidence may be missed or passed over. Includes nonoccurrence, no surviving evidence, unlocated evidence, failure to note evidence, inaccurate criticism of…

Demographic, attitudinal, and response-completion differences were investigated for initial and delayed respondents to a mail survey targeting 600 elementary and secondary school teachers. Overall response rate was 71.2 percent. Twenty-five nonrespondents were interviewed. Delay of response was associated with lower interest in the topic and lower…

Summarizes current research on the outcomes of open adoption. Discusses issues involved in conducting research on openness and offers methodological recommendations. Provides examples from one research program with adoptive kinship networks. Concludes that psychological outcomes were less related to the level of openness than to the dynamics of…

Presents two chain-of-choices models, one for adoptive parents and one for birth parents and adoptees, as possible frameworks within which to consider the role of individual differences, choices, and selections in understanding the process of adoption and adoption outcomes. Discusses the research and practice implications following from the…

Background: Debates about the developmental origins of adult face processing could be directly addressed if a clear infant neural marker could be identified. Previous research with infants remains open to criticism regarding the control stimuli employed. Methods: We recorded ERPs from adults and 3-month-old infants while they watched faces and…

Global economic transformations have never been as dramatic as in the twentieth century. Most countries have experienced radical changes in the standards of income per capita, technology, fertility, mortality, income inequality and the extent of democracy in the course of the past century. It is the goal of many disciplines--economics, history,…

The lack of consensus among researchers in defining the focal construct of rurality has led to contradictory conclusions of whether or not a rural-urban performance gap exists in higher education. Compounding this problem are the changing definitions of rural and urban, even among governmental agencies. Thus, this study used two different…

Abuses and misuses of statistics are frequent. This digest attempts to warn against these in three broad classes of pitfalls: sources of bias, errors of methodology, and misinterpretation of results. Sources of bias are conditions or circumstances that affect the external validity of statistical results. In order for a researcher to make…