NotesFAQContact Us
Collection
Advanced
Search Tips
Showing all 5 results Save | Export
Peer reviewed Peer reviewed
Direct linkDirect link
Curran, F. Chris – Educational Evaluation and Policy Analysis, 2016
Zero tolerance discipline policies have come under criticism as contributors to racial discipline gaps; however, few studies have explicitly examined such policies. This study utilizes data from two nationally representative data sources to examine the effect of state zero tolerance laws on suspension rates and principal perceptions of problem…
Descriptors: Zero Tolerance Policy, Laws, Student Behavior, Behavior Problems
Peer reviewed Peer reviewed
Markel, William D. – School Science and Mathematics, 1985
The concept of statistical significance is explained, with specific numerical illustrations. (MNS)
Descriptors: Educational Research, Mathematical Concepts, Probability, Research Methodology
Peer reviewed Peer reviewed
Terrell, Colin D. – Educational and Psychological Measurement, 1982
Tables are presented giving the critical values of the biserial and the point biserial correlation coefficients (when the null hypothesis assumes a value of zero for the coefficient) at the 0.05 and the 0.01 levels of significance. (Author)
Descriptors: Correlation, Mathematical Formulas, Probability, Research Tools
Peer reviewed Peer reviewed
Vegelius, Jan – Educational and Psychological Measurement, 1981
The G index is a measure of the similarity between individuals over dichotomous items. Some tests for the G-index are described. For each case an example is included. (Author/GK)
Descriptors: Hypothesis Testing, Mathematical Formulas, Mathematical Models, Nonparametric Statistics
Atkinson, Leslie – American Journal on Mental Retardation, 1990
The article provides a set of tables with the differences necessary for statistical significance between the Vineland Adaptive Behavior Scales and Bayley Scales of Infant Development, McCarthy Scales of Children's Abilities, Stanford-Binet Intelligence Scale, and Wechsler scales. The tables are intended to supplement clinical decisions in…
Descriptors: Adaptive Behavior (of Disabled), Evaluation Methods, Intelligence Tests, Mental Retardation