Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Coefficients alpha for components.

H F Kaiser1, W T Norman

  • 1Educational Testing Service, Berkeley, California.

Psychological Reports
|August 1, 1991
PubMed
Summary
This summary is machine-generated.

A new formula for coefficient alpha for components is developed. It is conjectured that the sum of coefficients alpha is invariant under orthogonal rotation, supported by a numerical example.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

A METHOD FOR MAXIMIZING THE RATIO OF TWO QUADRATIC FORMS.

Multivariate behavioral research·2016
Same author

Casey's Method For Fitting Hyperplanes From An Intermediate Orthomax Solution.

Multivariate behavioral research·2016
Same author

A Score Matrix for Thurstone's Box Problem.

Multivariate behavioral research·2016
Same author

A Study Of A Measure Of Sampling Adequacy For Factor-Analytic Correlation Matrices.

Multivariate behavioral research·2016
Same author

"TO SEE OURSELVES AS OTHERS SEE US!": RELATIONS AMONG SELF-PERCEPTIONS, PEER-PERCEPTIONS, AND EXPECTED PEER-PERCEPTIONS OF PERSONALITY.

Multivariate behavioral research·2016
Same author

A NOTE ON THE EQUAMAX CRITERION.

Multivariate behavioral research·2016
Same journal

Psychological Impacts of Instagram Use: The Interplay of Social Comparison, Self-Esteem, and Anxiety.

Psychological reports·2026
Same journal

The Effect of Self-Compassion on Shame in Post-Event Processing.

Psychological reports·2026
Same journal

Tracking Rumination as a Stable Habit (TRASH); Scale Modification and Convergent Validity in a Clinical Sample of Youth With a History of Depression.

Psychological reports·2026
Same journal

Prompting to Practice: Daily Practice Mediates the Benefits of Supplement to a Mindfulness-Based Intervention.

Psychological reports·2026
Same journal

Continued Influence Effect: A Three-Dimensional Framework Shaping Practical and Theoretical Perspectives.

Psychological reports·2026
Same journal

ADHD Symptoms, Interpersonal Functioning, and Sexual Orientation in Undergraduate Adults.

Psychological reports·2026
See all related articles

Area of Science:

  • Psychometrics
  • Multivariate Statistics

Background:

  • Coefficient alpha is a widely used measure of internal consistency reliability.
  • Determining the appropriate number of components in factor analysis is crucial for valid interpretation.

Purpose of the Study:

  • To develop a formula for coefficient alpha applicable to individual components in factor analysis.
  • To investigate the invariance of the sum of coefficient alphas under orthogonal rotation.

Main Methods:

  • Derivation of a novel formula for component-wise coefficient alpha.
  • Application of Kaiser's special formula for principal components.
  • Utilization of the Kaiser-Guttman Rule for component selection.

Main Results:

Related Experiment Videos

  • A formula for calculating coefficient alpha for a component was successfully developed.
  • A numerical example demonstrated the application of the derived formula.
  • The study presents a conjecture regarding the invariance of the sum of coefficient alphas under orthogonal rotation.

    • Conclusions:

    • The developed formula provides a method for assessing the reliability of individual components.
    • Further research is needed to formally prove the conjecture on the invariance of the sum of coefficient alphas.