The Generalizability and Reliability of Scores on the Rosenberg Self-Esteem Scale over Forty-Eight Years

Cronbach’s α median across all years was .87 with a range of .79 to 88. Guttman’s λ^2 median .87 with a range of .81 to .91. In the 8-item and 10-item D-studies, the ρ^2 coefficient values were greater than .80, the Φ coefficients scores are greater than .80.