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. Author manuscript; available in PMC: 2011 Sep 1.
Published in final edited form as: Psychol Aging. 2010 Sep;25(3):595–605. doi: 10.1037/a0019771

Spearman-Brown Split-Half Reliability Coefficients

Variable Young Adults Older Adults
All Regular .64 .93
Time-Check .58 .87
All Irregular .77 .92
Regular Event .39 .93
Regular Time .59 .86
Irregular Event .70 .87
Irregular Time .59 .86
WM .72 .90
PVT .98 .94