StatTools : Cronbach's Alpha Program

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Related link :
Concordance (Agreements) Explained Page
Sample Size for Estimating a Cronbach's Alpha Program Page
Sample Size for Estimating a Cronbach's Alpha Explained and Tables Page

Program References

Data Entry Using Raw data of Measurements :
    

Data Entry Using Covariance or Correlation Matrix :
    

Data Input : Two format of data input is available
  • Data Entry Using raw data ot primary measurements :
    • Each rows represent data from a subject
    • The columns represent measurement of different variables
  • Data Entry Using an assumed covariance matrix :
    • The Program assumes the matrix to be covariance matrix
      and calculates the correlation matrix from it
    • If the matrix entered is a correlation matrix,
      then the calculated correlation matrix is the same