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. Author manuscript; available in PMC: 2014 Aug 18.
Published in final edited form as: J Early Adolesc. 2013 Oct 28;34(5):638–666. doi: 10.1177/0272431613507498

Table 2.

Current 4-item reliability coefficients, Harter’s published 6-item coefficients, and Spearman-Brown corrected comparisons.

Domains Year 12
4-items
Harter 3rd–5th
(ages 8–10)
6-items1
Harter 6th–8th
(ages 11–13)
6-items1
Year 12
SB correction
Scholastic Competence .63 .80–.82 .80–.85 .72
Social Acceptance .70 .75 .80 .78
Athletic Competence .53 .80–81 .84–.86 .63
Physical Appearance .69 .76–.80 .81–.82 .77
Behavioral Conduct .67 .71.73 .75–.77 .76
Global Self-Worth .68 .78 .80–.84 .76
1

Based on four 1980s samples in the Harter SPPC Manual, before Social scale was revised.