EXHIBIT 11 ---------- COMPUTER TASK GROUP, INCORPORATED --------------------------------- COMPUTATION OF DILUTED EARNINGS PER SHARE UNDER THE TREASURY STOCK METHOD SET FORTH IN STATEMENT OF FINANCIAL ACCOUNTING STANDARDS NO. 128 "EARNINGS PER SHARE" (AMOUNTS IN THOUSANDS, EXCEPT PER SHARE DATA) QUARTER ENDED MARCH 29, MARCH 30, 2002 2001* -------- ----------- Weighted-average number of shares outstanding during period 16,533 16,383 Common Stock equivalents - Incremental shares under stock options plans 437 - -------- --------- Number of shares on which diluted earnings per share is based 16,970 16,383 ======== ========== Net income (loss) for the period $ 449 $ (1,380) ======== ========== Diluted income (loss) per share $ 0.03 $ (0.08) ======== =========== Basic income (loss) per share $ 0.03 $ (0.08) ======== =========== * As the Company had a net loss in the first quarter of 2001, the number of incremental shares under the Company's stock options plans is considered to be zero as the inclusion of such shares would cause the diluted loss per share calculation to be anti-dilutive 14