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Composite Reliability Calculator

CompReliability

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Description

This calculator estimates composite reliability as:CR formula

Whereby, λ (lambda) is the standardized factor loading for item i and ε is the respective error variance for item i. The error variance (ε) is estimated based on the value of the standardized loading (λ) as:

epsilon

The item r-square value is the percent of the variance of item i, explained by the latent variable. It is estimated based on the value of the standardized loading (λ) as:

rsquare

Instructions

1. Enter the standardized loading for the first item.

2. Click “add item” and continue to enter the standardized loading for each item.

3. To remove any item, click “delete”.

4. To reset the form, click “reset”.

Formula Reference

Raykov, Tenko. (1997). Estimation of composite reliability for congeneric measures. Applied Psychological Measurement, 21(2), 173-184.

Calculator Citation

Colwell, Scott R. (2016). The composite reliability calculator. Technical Report, DOI: 10.13140/RG.2.1.4298.088.

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