Meta-analysis is a technique used in a variety of disciplines to combine and summarize the findings of previous research. One step in the production of a meta-analysis is a thorough literature search for relevant studies. A variety of methods can be used to increase the number of studies that are found. This study examines the extent to which some…

The author reviewed 22 articles published in professional journals related to the field of education that examined the experiences of gay and lesbian teachers and related services personnel. Ten of the 22 articles were legal analyses; five were position papers; four reported the findings of empirical research studies; three were anecdotal reports.…

Decisions made by high school and college basketball athletes are becoming increasingly complex as sport has evolved into a true industry. The decisions made during the formative years have a tremendous impact upon the individual as well as the institution that the athlete chooses to attend. Most of the studies about athletes and their institution…

Most statistics courses emphasize the power of statistics. Michele DiPietro's course focuses on the failures. Gay and lesbian studies are certainly fertile ground for bad guesses and unreliable statistics. The most famous number, that 10 percent of the population is gay, was taken from a biased Kinsey sample of white men ages 16 to 55 in 1948, and…

Today's language classroom is vastly different from that of the mid- to late 20th century. The study is a meta-analysis of recent research which provided the means to identify current and emerging trends in the field. Informed by this research, some identified trends that are shaping the 21st century language classroom are outdated practices such…

We tested special and general explanations of male adolescent sexual offending by conducting a meta-analysis of 59 independent studies comparing male adolescent sex offenders (n = 3,855) with male adolescent non-sex offenders (n = 13,393) on theoretically derived variables reflecting general delinquency risk factors (antisocial tendencies),…

A meta-analysis of the relationship between class attendance in college and college grades reveals that attendance has strong relationships with both class grades (k = 69, N = 21,195, p = 0.44) and GPA (k = 33, N = 9,243, p = 0.41). These relationships make class attendance a better predictor of college grades than any other known predictor of…

The National Assessment of Educational Progress reveals that 37 percent of U.S. fourth graders fail to achieve basic levels of reading achievement. In 1997, the U.S. Congress asked that a review of research be conducted to determine what could be done to improve reading and writing achievement. The resulting "Report of the National Reading…

There has been significant interest in the role of anxiety sensitivity (AS) in the anxiety disorders. In this meta-analysis, we empirically evaluate differences in AS between anxiety disorders, mood disorders, and nonclinical controls. A total of 38 published studies (N = 20,146) were included in the analysis. The results yielded a large effect…

This meta-analysis assesses the effectiveness of volunteer tutoring programs for improving the academic skills of students enrolled in public schools Grades K-8 in the United States and further investigates for whom and under what conditions tutoring can be effective. The authors found 21 studies (with 28 different study cohorts in those studies)…

This meta-analysis examines to what extent interactive storybook reading stimulates two pillars of learning to read: vocabulary and print knowledge. The authors quantitatively reviewed 31 (quasi) experiments (n = 2,049 children) in which educators were trained to encourage children to be actively involved before, during, and after joint book…

The study used meta-analysis techniques to examine the effectiveness of intervention strategies for children with cerebral palsy. An examination of existing literature on meta-analysis revealed that techniques are available to accommodate a wide variety of research designs and data. Next, the percentage of studies purporting to address an…

Conducted meta-analysis of 108 well-designed outcome studies using 4- through 18-year-old subjects to examine effectiveness of psychotherapy with children and adolescents. Overall, findings revealed significant, durable effects of treatment that differed somewhat with client age and treatment method but which were reliably greater than zero for…

The Meta-Analysis Effect Size Calculator provides the user with many different ways to calculate an effect size depending on the information available in the original research report. In addition, the program computes an unbiased estimate of effect size. (Author)

Evaluated the effectiveness of paradoxical interventions in psychotherapy, in a meta-analysis of 12 data sets. Found that paradoxical interventions were as effective as, but not more effective than, the typical treatment made except for one month after treatment termination and with more severe cases, when it showed relatively greater…