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. Author manuscript; available in PMC: 2010 Feb 10.
Published in final edited form as: Percept Psychophys. 2003 Apr;65(3):396. doi: 10.3758/bf03194571

Table 2.

Percentage of Variance Accounted for in the Masking Functions for Each PC for Separate Analyses Performed on Groups 2–5 (Staircase Procedure, Adults and Children) and on Group 1 (A2IFC, Adults Only)

% Variance Accounted for

Principal Component Groups 2–5 Analysis Group 1 Analysis
1 82.8 83.1
2 9.3 8.8
3 3.8 3.5
4 1.9 2.7
5 1.6 1.3
6 0.6 0.6