EXHIBIT 23.5


                     CONSENT OF J.P. MORGAN SECURITIES INC.


        We hereby consent to (i) the use of our opinion letter dated October 26,
2001 to the Board of Directors of NetGenesis Corp. (the "Company") included in
Annex B to the Proxy Statement/Prospectus of the Company included in the
Registration Statement on Form S-4 filed with the Securities and Exchange
Commission by SPSS Inc. ("SPSS") on November 13, 2001 relating to the proposed
merger transaction involving the Company and SPSS, and (ii) the references to
such opinion in such Proxy Statement/Prospectus.  In giving such consent, we do
not admit that we come within the category of persons whose consent is required
under Section 7 of the Securities Act of 1933, as amended, or the rules and
regulations of the Securities and Exchange Commission thereunder, nor do we
hereby admit that we are experts with respect to any part of such Registration
Statement within the meaning of the term "experts" as used in the Securities Act
of 1933, as amended, or the rules and regulations of the Securities and Exchange
Commission thereunder.


                                                 J.P. MORGAN SECURITIES INC.


                                                 By:  /s/ TODD MARIN
                                                      ----------------------
                                                      Name:  Todd Marin
                                                      Title: Managing Director


November 12, 2001