NotesFAQContact Us
Collection
Advanced
Search Tips
Descriptor
Analysis of Variance2
Sampling2
Estimation (Mathematics)1
Language Skills1
Language Tests1
Sample Size1
Second Language Learning1
Statistical Distributions1
Statistical Significance1
Statistics1
Test Reliability1
More ▼
Source
Language Testing1
Author
Krzanowski, Wojtek J.1
Rennie, Kimberly M.1
Woods, Anthony J.1
Publication Type
Reports - Descriptive2
Journal Articles1
Speeches/Meeting Papers1
Education Level
Audience
Location
Laws, Policies, & Programs
Assessments and Surveys
What Works Clearinghouse Rating
Showing all 2 results Save | Export
Understanding the Sampling Distribution: Why We Divide by n-1 To Estimate the Population Variance.
PDF on ERIC Download full text
Rennie, Kimberly M. – 1997
This paper explains the underlying assumptions of the sampling distribution and its role in significance testing. To compute statistical significance, estimates of population parameters must be obtained so that only one sampling distribution is defined. A sampling distribution is the underlying distribution of a statistic. Sampling distributions…
Descriptors: Analysis of Variance, Estimation (Mathematics), Sample Size, Sampling
Statistical Aspects of Reliability in Language Testing.
Peer reviewed Peer reviewed
Krzanowski, Wojtek J.; Woods, Anthony J. – Language Testing, 1984
Discusses the concept of reliability in language testing and considers several simple ANOVA (analysis of variance) models which can be used to define and estimate reliability coefficients. Summarizes the main statistical results associated with the commonly used measurements of reliability. Presents results likely to be of use to language testers.…
Descriptors: Analysis of Variance, Language Skills, Language Tests, Sampling