Gene V Gla
Biographic Data
| ID | 266238 |
|---|---|
| NAME | Gene V Gla |
| GIVEN NAMES | Gene V |
| FAMILY NAME | Gla |
| SIGNATURE | GLA G V |
| AFFILIATIONS | Arizona State University |
| ORCID | 0000-0002-8422-7020 |
| VERIFIED | Yes |
| TOTAL WORKS | 69 |
| TOTAL CITATIONS | 809 |
| AUTHOR COUNT | 69 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 1965 |
| LATEST PUBLICATION YEAR | 2026 |
| H-INDEX | 11 |
Continuing the conversation: “Life is Good”—David Berliner's legacy
Throughout his journey from applied researcher to world-renowned scholar, David Berliner was committed to education research that matters—not just within academic circles, but within classrooms and communities. As a public intellectual and a fierce advocate for public education, David expertly and courageously engaged in education debates, bridged research with practice, debunked myths and exposed misinformation, and in the process, reshaped how …
The origins of Education Policy Analysis Archives in an era of early open access publishing
In conjunction with the 30th anniversary of the open access scholarly journal, Education Policy Analysis Archives, Founder and Editor Emeritus Gene V Glass presents a brief history of the journal, including its online predecessors and offshoots, within the context of computer and information technology developments and the early open access movement in scholarly publishing
One Hundred Years of Research: Prudent Aspirations
The statistical method “meta-analysis” is perhaps unique as a contribution to empirical inquiry of many types because it arose entirely within the practice of education research. In spite of its origins, meta-analysis has found its widest application and most important contributions in the field of medicine. Contrasting the success of meta-analysis in medicine and education reveals interesting lessons for the future of education research. The fin…
As We Embark on a New Editorship: A Statement From the Aerj -SIA Editors
Meta-Analysis: The Quantitative Synthesis of Research Findings
The Struggle Between Individualism and Communitarianism: The Pressure of Population, Prejudice, and the Purse
School Choice in a Post-Desegregation World
In contrast to unregulated school choice, regulated choice programs oversee the assignment of students to schools with equity in mind. This article puts forth evidence for three claims with respect to unregulated and regulated school choice: (c) Unregulated choice plans tend to exacerbate the stratification of students along race, class, and achievement lines; (b) regulated choice programs have the potential to increase the integration of schools…
High-Stakes Testing and Student Achievement: Does Accountability Pressure Increase Student Learning
This study examined the relationship between high-stakes testing pressure and student achievement across 25 states. Standardized portfolios were created for each study state. Each portfolio contained a range of documents that told the "story" of accountability implementation and impact in that state. Using the "law of comparative judgments," over 300 graduate-level education students reviewed one pair of portfolios and made independent evaluation…
Weighing the Evidence: A Meta-Analysis of Bilingual Education in Arizona
This article reviews the current policy context in the state of Arizona for program options for English language learners and produces a meta-analysis of studies on the effectiveness of bilingual education that have been conducted in the state in or after 1985. The study presents an analysis of a sample of evaluation studies (N = 4), which demonstrates a positive effect for bilingual education on all measures, both in English and the native langu…
The Education Gap: Vouchers and Urban Schools
While the merits of vouchers have been the subject of intense public debate in recent years, there has been very little available evidence upon which to gauge their efficacy. The first publicly funded voucher plan involving private schools wasn't established until 1990 in Milwaukee; before then, the only data on school choice came from a small, poorly designed program in California. Voucher programs grew dramatically in the latter half of the 199…
Do Some School-Age Children Have No Language? Some Problems of Construct Validity in the Pre-LAS Español
This article reports the existence of a large group of students identified as “non-nons,” Spanish-background school-age children living in the United States who are reported to be non-verbal in both English and Spanish, and brings the validity of the “non-non” construct into question. In particular, the authors assess the validity of the Pre- Language Assessment Scales Español (Pre-LAS Español), an oral language assessment that purports to measur…
The Vision Thing: Educational Research and Aera in the 21st Century–Part 4: The Future of Scholarly Communications
The Vision Thing: Educational Research and Aera in the 21st Century. Part 4: The Future of Scholarly Communications
Research news and Comment: The Educational Research List (ERL-L) on Bitnet/Internet
The Educational Research List (ERL-L) on Bitnet/Internet
Promoting Conceptual Change in Science: A Comparative Meta-Analysis of Instructional Interventions from Reading Education and Science Education
Barbara J. Guzzetti, Tonja E. Snyder, Gene V Glass, Warren S. Gamas, Promoting Conceptual Change in Science: A Comparative Meta-Analysis of Instructional Interventions from Reading Education and Science Education, Reading Research Quarterly, Vol. 28, No. 2 (Apr. - May - Jun., 1993), pp. 116-159
Research News and Comment: A Conversation About Educational Research Priorities: A Message to Riley
A Conversation about Educational Research Priorities: A Message to Riley
Research news and Comments: A Slice of Advice
A Slice of Advice
Computer Networking for Educational Researchers on Bitnet
Are Data Enough
Research News and Comment: Computer Networking for Educational Researchers on B itnet
Comparative Impacts of Alternatives to Adolescent Placement
The impacts of day treatment and family treatment as alternatives to adolescent placement are assessed in a longitudinal, quasi-experimental study. The development of the day treatment and family treatment programs greatly reduced the number of adolescent placements by a public county welfare agency. Substantial cost savings were associated with family treatment. Post-intervention delinquency rates, relative to pre-intervention rates, were lowest…
Standards of Competence: Propositions on the Nature of Testing Reforms
A multisite investigation of local school districts and states led to the formulation of five propositions that address the nature of competency testing reforms. Two propositions address the determination of standards and examine the extent to which such procedures are affected by political and practical considerations. Another pair of propositions center on implementation of such testing reforms; lopsided organizational activity and nominal atte…
Primary, Secondary, and Meta-Analysis of Research
Meta-analysis of psychotherapy outcome studies
Results of nearly 400 controlled evalua- tions of psychotherapy and counseling were coded and integrated statistically. The findings provide convincing evidence of the efficacy of psychotherapy. On the average, the typical therapy client is better off than 75% of untreated individuals. Few important differ- ences in effectiveness could be established among many quite different types of psychotherapy . More generally, virtually no difference in ef…
The Relationship between Sex Roles and Mental Health: A Meta-Analysis of Twenty-Six Studies
The External Validity of Experiments
Shortly after publication, Donald T. Campbell and Julian C. Stanley's Experimental and Quasi-Experimental Designs for Research on Teaching (1963) gained the status of a classic exposition of experimentation in education. There have been few attempts to extend this pioneering work, as might be expected of a work so comprehensive in conception and so brilliant in execution. Webb et al. (1966) produced a work similar in purposethat being to identify…
Determining the Social Effects of a Legal Reform: The British "Breathalyser" Crackdown of 1967
Promoting Conceptual Change in Science: A Comparative Meta-Analysis of Instructional Interventions from Reading Education and Science Education
Barbara J. Guzzetti, Tonja E. Snyder, Gene V Glass, Warren S. Gamas, Promoting Conceptual Change in Science: A Comparative Meta-Analysis of Instructional Interventions from Reading Education and Science Education, Reading Research Quarterly, Vol. 28, No. 2 (Apr. - May - Jun., 1993), pp. 116-159
Analysis of Data on the Connecticut Speeding Crackdown as a Time-Series Quasi-Experiment
In late 1955 in Connecticut, the number of fatalities per 100,000 population in motor vehicle accidents reached a record high for the 1950s. On December 23, 1955, Governor Abraham Ribicoff took unprecedented action to reduce traffic fatalities. Ribicoff announced that persons convicted of speeding would have their licenses suspended for thirty days at the first offense, for sixty days at the second offense, and for an indefinite period (subject t…
The effect of psychological intervention on recovery from surgery and heart attacks: An analysis of the literature
A quantitative review of 34 controlled studies demonstrates that, on the average, surgical or coronary patients who are provided information or emotional support to help them master the medical crisis do better than patients who receive only ordinary care. A review of 13 studies that used hospital days post-surgery or post-heart attack as outcome indicators showed that on the average psychological intervention reduced hospitalization approximatel…
School Choice in a Post-Desegregation World
In contrast to unregulated school choice, regulated choice programs oversee the assignment of students to schools with equity in mind. This article puts forth evidence for three claims with respect to unregulated and regulated school choice: (c) Unregulated choice plans tend to exacerbate the stratification of students along race, class, and achievement lines; (b) regulated choice programs have the potential to increase the integration of schools…
High-Stakes Testing and Student Achievement: Does Accountability Pressure Increase Student Learning
This study examined the relationship between high-stakes testing pressure and student achievement across 25 states. Standardized portfolios were created for each study state. Each portfolio contained a range of documents that told the "story" of accountability implementation and impact in that state. Using the "law of comparative judgments," over 300 graduate-level education students reviewed one pair of portfolios and made independent evaluation…
The 1900 Revision of German Divorce Laws: Analysis of Data as a Time-Series Quasi-Experiment
In 1959, Wolf, Lüke, and Hax published Scheidung und Scheidungsrecht (Divorce and Divorce Law), dealing with the effects of revision of German divorce laws in 1900 on the rates of divorce and petition for divorce. This paper is a reanalysis of Wolf, Lüke, and Hax's data with newly developed inferential statistical models, and a reappraisal in light of appropriate statistical analyses of then-conclusions and those of Max Rheinstein (1960) in his r…
Policy for the Unpredictable (Uncertainty Research and Policy)
Meta-Analysis of Research on Class Size and Its Relationship to Attitudes and Instruction
Features of 59 studies of this relationship were coded and quantified and 371 findings were transformed into a common metric for statistical integration. Analysis, based on a logarithmic model, revealed a substantial relationship between class size and teacher and pupil attitudes as well as instruction. Favorable teacher effects (workload, morale, attitudes toward students) are associated with smaller classes as are favorable effects on students …
Abuses of Factor Scores
A variant of the method of principal components which is due to Hotelling (1933), is currently perhaps the most popular choice for analyzing a group of variables into factors. The practitioner often refers to components analysis as analysis with l's in the diagonal. Kaiser's suggestion (1960; 1964) to retain only the same number of factors as there are latent roots greater than one of the matrix, R, of intercorrelations among the variables has ga…
Weighing the Evidence: A Meta-Analysis of Bilingual Education in Arizona
This article reviews the current policy context in the state of Arizona for program options for English language learners and produces a meta-analysis of studies on the effectiveness of bilingual education that have been conducted in the state in or after 1985. The study presents an analysis of a sample of evaluation studies (N = 4), which demonstrates a positive effect for bilingual education on all measures, both in English and the native langu…
Mental health treatment and medical care utilization in a fee-for-service system: Outpatient mental health treatment following the onset of a chronic disease
Charges for medical services of persons covered by the Blue Cross/Blue Shield Federal Employees Program from 1974 through 1978 who were first diagnosed as having one of four chronic diseases in 1975 and within one year began mental health treatment (MHT) were compared with persons who also were first diagnosed as having one of these diseases in 1975 but had no subsequent MHT. In the third year following the diagnosis, those having seven to 20 MHT…
Standards of Competence: Propositions on the Nature of Testing Reforms
A multisite investigation of local school districts and states led to the formulation of five propositions that address the nature of competency testing reforms. Two propositions address the determination of standards and examine the extent to which such procedures are affected by political and practical considerations. Another pair of propositions center on implementation of such testing reforms; lopsided organizational activity and nominal atte…
Do Some School-Age Children Have No Language? Some Problems of Construct Validity in the Pre-LAS Español
This article reports the existence of a large group of students identified as “non-nons,” Spanish-background school-age children living in the United States who are reported to be non-verbal in both English and Spanish, and brings the validity of the “non-non” construct into question. In particular, the authors assess the validity of the Pre- Language Assessment Scales Español (Pre-LAS Español), an oral language assessment that purports to measur…
Factorial structure of selected psycho-educational measures and piagetian reasoning assessments
Choice of the Metric for Effect Size in Meta-analysis
Meta-analysis, as a procedure for integrating the results of empirical studies, depends on the quantification of the results of individual investigations. The standardized mean difference in performance between treatment and control conditions has been conventionally used for this purpose. There are difficulties with this technique when group standard deviations are not homogeneous, when a control condition is not included in a particular study, …
As We Embark on a New Editorship: A Statement From the Aerj -SIA Editors
Reply to Mansfield and Busse
A Paradox About Excellence of Schools and the People in Them
Testing Homogeneity of Variances
A Slice of Advice
Evaluating Testing, Maturation, and Treatment Effects in a Pretest-Posttest Quasi-Experimental Design
Note on Rank Biserial Correlation
variables, n consecutive ranks, a dichotomy, a trichotomy, etc. In this paper we shall be concerned with developing a measure of the correlation between one variable comprising n consecutive untied ranks and a second variable comprising a dichotomy. We shall regard the dichotomy (scored 0, 1) as having a ranking variable underlying it. In this regard it is analogous to the assumption made in biserial correlation that a normally distributed variab…
Abuses of Factor Scores
A variant of the method of principal components which is due to Hotelling (1933), is currently perhaps the most popular choice for analyzing a group of variables into factors. The practitioner often refers to components analysis as analysis with l's in the diagonal. Kaiser's suggestion (1960; 1964) to retain only the same number of factors as there are latent roots greater than one of the matrix, R, of intercorrelations among the variables has ga…
Testing Homogeneity of Variances
A Program for the Analysis of Certain Time-Series Quasi-Experiments1
A Critique of Experiments on the Role of Neurological Organization in Reading Performance
Foundations of the Theory of Prediction
Component Profile Analysis (Copan)—An Alternative to Prof
The External Validity of Experiments
Shortly after publication, Donald T. Campbell and Julian C. Stanley's Experimental and Quasi-Experimental Designs for Research on Teaching (1963) gained the status of a classic exposition of experimentation in education. There have been few attempts to extend this pioneering work, as might be expected of a work so comprehensive in conception and so brilliant in execution. Webb et al. (1966) produced a work similar in purposethat being to identify…
Correlations with Products of Variables: Statistical Formulation and Implications for Methodology
Analysis of Data on the Connecticut Speeding Crackdown as a Time-Series Quasi-Experiment
In late 1955 in Connecticut, the number of fatalities per 100,000 population in motor vehicle accidents reached a record high for the 1950s. On December 23, 1955, Governor Abraham Ribicoff took unprecedented action to reduce traffic fatalities. Ribicoff announced that persons convicted of speeding would have their licenses suspended for thirty days at the first offense, for sixty days at the second offense, and for an indefinite period (subject t…
Measures of Association in Comparative Experiments: Their Development and Interpretation
Geometric Proof of the Restriction On the Possible Values of rxy When r xz and ryz Are Fixed
Determining the Social Effects of a Legal Reform: The British "Breathalyser" Crackdown of 1967
The 1900 Revision of German Divorce Laws: Analysis of Data as a Time-Series Quasi-Experiment
In 1959, Wolf, Lüke, and Hax published Scheidung und Scheidungsrecht (Divorce and Divorce Law), dealing with the effects of revision of German divorce laws in 1900 on the rates of divorce and petition for divorce. This paper is a reanalysis of Wolf, Lüke, and Hax's data with newly developed inferential statistical models, and a reappraisal in light of appropriate statistical analyses of then-conclusions and those of Max Rheinstein (1960) in his r…
Consequences of Failure to Meet Assumptions Underlying the Fixed Effects Analyses of Variance and Covariance
The effects of violating the assumptions underlying the fixed-effects analyses of variance (ANOVA) and covariance (ANCOVA) on Type-I and Type-II error rates have been of great concern to researchers and statisticians. The major effects of violation of assumptions are now well known, after nearly four decades of research. Early summaries and reviews by Hey (1938), Garret and Zubin (1943), Grant (1944), and Gourlay (1955) and more recent reviews by…
Factorial structure of selected psycho-educational measures and piagetian reasoning assessments
Educational Product Evaluation: A Prototype Format Applied
Statistical Methods in Education and Psychology
Estimating the Effects of Intervention into a Non-Stationary Time-Series
Observation of a variable Z at several equally spaced points in time yields the observations z1, z2,..., ZN. Suppose that an intervention (T) is made at some point in time before time N into the process presumed to be controlling Z. The time-series is said to be interrupted at a point in time, say nl less than N: z1, ..., zn, T, zn + 1, ..., ZN. When the intervention is made for purposes of studying its effects, whether they be a change in level …
A Paradox About Excellence of Schools and the People in Them
Primary, Secondary, and Meta-Analysis of Research
Meta-analysis of psychotherapy outcome studies
Results of nearly 400 controlled evalua- tions of psychotherapy and counseling were coded and integrated statistically. The findings provide convincing evidence of the efficacy of psychotherapy. On the average, the typical therapy client is better off than 75% of untreated individuals. Few important differ- ences in effectiveness could be established among many quite different types of psychotherapy . More generally, virtually no difference in ef…
Factors influencing the evaluation of educational programs: Analyses of judgemental policies
"An exercise in mega-silliness": Reply
Psychology (51 works) · Sociology (26 works) · Mathematics education (24 works) · Computer Science (20 works) · Mathematics (19 works) · Educational research (16 works) · Statistics (16 works) · Medicine (13 works) · Political science (12 works) · Pedagogy (11 works)