1 RTFIT DATA set up for one problem 7 7 7 Rows and 7 columns 0 0 0 0 0 0 0 This is the 7 X 7 Matrix of 1.82 0 0 0 0 0 0 Judged "differences" in likeableness 3.82 2.73 0 0 0 0 0 Experimental design was triangular 4.67 3.95 2.53 0 0 0 0 All nonequal pairs. 6.65 5.50 4.07 3.35 0 0 0 Data are mean judgments from 8.13 7.05 5.67 4.47 2.53 0 0 Experiment 1 of Birnbaum & Jou (1990). 8.92 7.75 6.02 5.22 3.18 1.37 0 0 0 0 0 0 0 0 This is the 7 X 7 Matrix of 2084 0 0 0 0 0 0 "More" Choice RTs; i.e., "which 1989 3088 0 0 0 0 0 do you like MORE?" 1742 2315 3597 0 0 0 0 1649 1977 2396 3071 0 0 0 1583 1546 1702 1848 1923 0 0 1497 1538 1535 1558 1681 1736 0 0 0 0 0 0 0 0 This is the 7 X 7 Matrix of 1534 0 0 0 0 0 0 "Less" RTS; i.e., "which do you 1413 2078 0 0 0 0 0 like LESS?" 1264 1771 2933 0 0 0 0 1281 1673 2459 2995 0 0 0 1392 1772 2085 1953 2319 0 0 1312 1539 1813 1943 2095 2276 0 0 0 0 0 0 0 0 This is the 7 X 7 Matrix of weights 1 0 0 0 0 0 0 Cells that are not used in the design 1 1 0 0 0 0 0 Are set to zero, all other cells 1 1 1 0 0 0 0 get equal weight; i.e., weight of 1. 1 1 1 1 0 0 0 Below are initial estimates of the 1 1 1 1 1 0 0 parameters. Last are the Masks. 1 1 1 1 1 1 0 2.00 3.00 4.00 5.00 6.00 7.0 -1.0 1.0 1500.00 1500.00 8.0 16.00 45.00 60.00 60.0 43.0 17.0 30.0 30.0 56.0 46.0 60.00 19.0 1.0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 A Mask of zero means that the parameter is free. A mask of 1 means that the parameter is fixed to its initial value. The first scale value is always fixed to one within the program. The above set-up also fixes the second scale value, which fixes the unit of the scale. S(1) = 1, S(2) = 2. Parameters are as follows: S(2) S(3) ... S(7) scale values for stimuli 2 through 7 AD = multiplicative constant for "difference" judgments AD(S(J)-S(I)) + BD BD = additive constant for "difference" judgments BR = additive constant for "less" RTs here set to 1.5 sec (1500 msec) BRM = additive constant for "more" RTs here set to 1.5 sec TR(1) TR(2) TR(3) ... TR(7) = bias parameters for "less" RTs TRM(1) TRM(2) ... TRM(7) = bias parameters for "more" RTs.