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Direct linkDecker, Scott L. – Assessment for Effective Intervention, 2008
This article reviews issues involved with using norm-referenced measures within an intervention validity model. Methodological examination of intervention validity has become more important as intervention methodologies have become part of federal legislation. However, current practice and federal guidelines often implicitly portray a dichotomy…
Descriptors: Intervention, Federal Legislation, Validity, Psychometrics
Altink, Marieke E.; Arias-Vasquez, Alejandro; Franke, Barbara; Slaats-Willemse, Dorine I. E.; Buschgens, Cathelijne J. M.; Rommelse, Nanda N. J.; Fliers, Ellen A.; Anney, Richard; Brookes, Keeley-Joanne; Chen, Wai; Gill, Michael; Mulligan, Aisling; Sonuga-Barke, Edmund; Thompson, Margaret; Sergeant, Joseph A.; Faraone, Stephen V.; Asherson, Philip; Buitelaar, Jan K. – Journal of Child Psychology and Psychiatry, 2008
Background: The dopamine receptor D4 ("DRD4") 7-repeat allele and maternal smoking during pregnancy are both considered as risk factors in the aetiology of attention deficit hyperactivity disorder (ADHD), but few studies have been conducted on their interactive effects in causing ADHD. The purpose of this study is to examine the gene by…
Descriptors: Siblings, Smoking, Attention Deficit Hyperactivity Disorder, Pregnancy
Rigotti, Thomas; Schyns, Birgit; Mohr, Gisela – Journal of Career Assessment, 2008
Occupational self-efficacy is an important resource for individuals in organizations. To be able to compare the occupational self-efficacy of employees across different countries, equivalent versions of the standard instruments need to be made available in different languages. In this article, the authors report on the structural and construct…
Descriptors: Self Efficacy, Construct Validity, Foreign Countries, Comparative Education
Bilal Fouad Barakat – Research in Comparative and International Education, 2008
Much recent research has been directed at illuminating the role of education in major conflicts between ethnic groups. It is increasingly well understood that education does not necessarily have a positive, peace-supporting influence, but that the wrong kind of education can serve to reinforce divisions. However, in many conflicts there are…
Descriptors: Racial Segregation, Ethnic Groups, Conflict, Role of Education
Download full textKim, Seock-Ho; Cohen, Allan S. – 1995
The Behrens-Fisher problem arises when one seeks to make inferences about the means of two normal populations without assuming the variances are equal. This paper presents a review of fundamental concepts and applications used to address the Behrens-Fisher problem under fiducial, Bayesian, and frequentist approaches. Methods of approximations to…
Descriptors: Bayesian Statistics, Hypothesis Testing, Probability, Statistical Inference
Henson, Robin K. – 1998
This paper explains how analysis of covariance (ANCOVA) and related statistical corrections work and discusses difficulties with the use of these corrections under certain circumstances. ANCOVA is essentially a regression of a covariate variable on the dependent variable from the entire sample ignoring group membership, at least, if ANCOVA…
Descriptors: Analysis of Covariance, Educational Research, Groups, Heuristics
Peer reviewedLevy, Kenneth J. – Educational and Psychological Measurement, 1975
Proposes three different multiple range tests based upon the Newman-Keuls philosophy with respect to significance levels. The three tests utilize the Fmax statistic, Cochran's statistic and a normalizing log transformation of the sample variances respectively. (Author/RC)
Descriptors: Analysis of Variance, Comparative Analysis, Hypothesis Testing, Statistical Significance
Peer reviewedLevy, Kenneth J. – Psychometrika, 1974
Descriptors: Analysis of Variance, Hypothesis Testing, Models, Sampling
PDF pending restorationSeaman, Samuel; And Others – 1984
The probability of obtaining a significant statistic, using the parametric analysis of covariance (ANCOVA) and the rank transform ANCOVA, was estimated for three conditions defined in terms of conditional distributions for two groups. The distributions were both normal, both skewed in the same direction but to different degrees, or both skewed to…
Descriptors: Analysis of Covariance, Correlation, Hypothesis Testing, Probability
Peer reviewedLord, Frederic M. – Educational and Psychological Measurement, 1974
Descriptors: Correlation, Hypothesis Testing, Statistical Analysis, Statistical Significance
Peer reviewedLiu In-mao – American Journal of Psychology, 1974
In solving a problem, how does the subject single out an intermediate hypothesis? When a sequence of hypotheses does not lead to a solution, how does he revise them? Does he give up the entire sequence? Article considered these problems. (Author/RK)
Descriptors: Hypothesis Testing, Models, Problem Solving, Psychological Studies
Davison, Mark L. – 1981
The interest in developmental sequences and learning hierarchies is growing. One approach to the study of such sequences is to gather data on several variables, each of which corresponds to a stage, step, or phase in the sequence and to examine the associations between the variables as displayed in a contingency table. If the variables are…
Descriptors: Cognitive Development, Hypothesis Testing, Mathematical Models, Probability
Powers, James E. – 1977
A Bayesian analysis for 2 to the k power factorial arrangements of treatments is presented in this paper. To perform the analysis, an experimenter must specify prior distributions on an orthogonal set of linear functions representing the main effects and interactions and on a function representing the grand mean. The solution is relatively…
Descriptors: Analysis of Variance, Bayesian Statistics, Hypothesis Testing, Statistical Significance
Schustack, Miriam W.; Sternberg, Robert J. – 1979
In three experiments, this study investigated what evidence people use in making inferences about causality in complex and uncertain situations. Given evidence consisting of multiple observations of some outcome, with each observation including information about the presence or absence of that outcome and of some of its possible causes, subjects…
Descriptors: Attribution Theory, Critical Thinking, Higher Education, Hypothesis Testing
Gross, Roger – 1977
If drama theorists are to improve the profession at large, they need to put their own house in order first. Too often drama theorists rely on intuition, tolerating the unexplained and the unsystematized. They could learn from theorists in other fields, such as physics and the "hard" sciences, by organizing the facts of their field of knowledge and…
Descriptors: Drama, Dramatics, Higher Education, Hypothesis Testing
