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. Author manuscript; available in PMC: 2016 Jun 29.
Published in final edited form as: Atten Percept Psychophys. 2014 Nov;76(8):2286–2304. doi: 10.3758/s13414-014-0705-4

Table 2.

The parameters for one fit of the ePTM for each participant, plus nested ePTM model test results on R2 values. The selected fit includes three Af terms and two σ terms, as this was predominately the best fit. The βU term is not listed because it is determined by using βM along with the angular difference between the templates (either 8° or 40°) and their standard deviation, σ. The subscript on the σ terms indicates the attention (cuing) condition. The extra subscript on the Af terms indicates the relevant set size. Aa terms are not listed (and are set to 1) because allowing them to vary did not significantly improve any fit. Tests are described in text. Values noted with asterisks (* or **) are significant at the 0.05 or 0.01 level.

Parameters Observers

156-AC 159-AL 159-YG 160-NR 161-DV Group
Nm 0.3626 0.3748 0.3370 0.3280 0.3515 0.3142
Na 0.0005 0.0002 0.0026 0.0007 0.0007 0.0022
γ 2.7089 3.0535 2.0076 2.3757 2.5111 2.0675
βM 2.2587 1.6627 2.0442 1.9627 2.0744 1.9932
σPrecue 10.7039 11.0532 9.7648 10.0362 10.3554 9.974
σSimultaneous cue 11.8621 12.0488 10.9075 11.1401 11.8708 10.904
Af 2 3.3092 1.0000 1.3182 1.5571 1.8201 1.7053
Af 4 3.8197 1.1816 3.6324 3.0151 1.5960 2.4670
Af 8 9.6140 4.1835 4.1074 8.5539 1.9686 4.1423
LSE 28.6434 27.7766 31.7631 42.0045 27.2230 20.1548
R2 0.8957 0.8968 0.8847 0.8742 0.9043 0.9322
Tests

3 Af vs. 0 Af (3,135) 16.1361** 4.3169** 10.3816** 11.9475** 2.3511 18.2522**
3 Aa vs. 0 Aa (3,135) 0.2555 0.1197 0.0000 0.0566 0.3150 0.5739
3 Af vs. 1 Af (2,135) 4.2713* 5.9520** 7.0252** 9.7118** 0.1411 7.8650**
2 σ vs. 1 σ (1,135) 3.8830 2.6163 3.1613 3.1121 7.6176** 3.7832
Fisher's χ2 for σ 20.5704**