The degree to which a measure or a set of data is consistent.
What is reliability?
100
A numerical indicator of the relationship between two sets of data, ranging from -1.00 to +1.00.
What is the Correlation Coefficient?
100
A researcher develops two versions of a test. She gives one version of the test to a group of students on a Monday, and the other version of the test to them the next day.
What is Alternate or Parallel Forms reliability?
200
Test-Retest, Alternate or Parallel Forms, and Internal Consistency
What are measurements of reliability?
200
The statistic used to measure the relationship between two quantitative variables, providing you with a correlation coefficient, represented as an 'r'.
What is the Pearson-Product Moment Correlation Coefficient?
200
A psychology teacher gives a test designed to assess student learning in her course to a group of students twice, with the second administration coming a week after the first, after which she calculates the stability of the scores.
What is Test - Retest Reliability?
300
A measure of how consistently different raters evaluate the same responses to the items of an instrument or provide the same conclusions during observation.
What is Inter-rater Reliability?
300
The most commonly used reliability measurement for assessing inter-item reliability.
What is Coefficient Alpha or Cronbach's Alpha?
300
An admissions committee individually rates applicants and compares scores to determine admittance.
What is Inter-rater Reliability?
400
To select an instrument and to interpret the results of an assessment to a client.
What are the ways in which a counselor uses reliability?
400
This provides an estimation of the range of scores that would be obtained if someone were to take an instrument over and over again.
What is Standard Error of Measure?
400
A high school teacher wants to evaluate the reliability a critical thinking assessment. He creates a large set of items that all pertain to critical thinking and then randomly split the questions up into two sets and administers them to his students.
What is Alternate or Parallel Forms Reliability?
500
Theory of the degree to which scores can be generalized across alternative forms, test administrators, number of items, and other facets of administration
What is the Generalizability Theory?
500
These formulas are used to determine reliability based on internal consistency of heterogeneous and homogeneous instruments.
What are the Kuder-Richardson Formulas?
500
A college professor compares the averages of the first 10 questions to the averages of the second 10 questions on a 20-question test she gave to her students.
What is Internal Consistency – Split-half Reliability?