(Sensory Threshold) (Method of constant stimuli) (Method of
limits) (Adjustment method)
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1/7 8-10 100% 100%
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2/7
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3/7 (psychometric function) % 3-7 3-7
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4/7 Fitting: , 50% % z 3-8 3-1 3-8 3-1 fitting: ( 3-1, 3-2) z a
+ b set z = 0, ? 0 a/b
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5/7 (standard stimulus, St) (comparison stimulus, Co) St 3-5 Co
100% Co 100%
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6/7 ( , time error) 3-9 3-9 (space error)
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7/7 3-10 3-10 (point of subjective equality, PSE) 50% (CE) CE
PSE St DL u f -1 (0.75) PSE DL l PSE f -1 (0.25) z a + b DL u (0.67
a)/b DL l ( 0.67 a)/b
1/2 (noise) N, SN f N (x), f SN (x) X: S f N (x), f SN (x) 4-8
4-8 (likelihood ratio) l (x) f SN (x)/ f N (x)
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2/2 = f SN (C)/ f N (C) l (x) SN l (x) < N 4-9 4-9 (expected
value) l (x) EV P i V i 4-1 4-1 EV P( /SN) P(SN) V SN (1 P( /SN) )
P(SN) V SN P( /N) P(N) V N (1 P( /N)) P(N) V N P(N)(V N V N ) /
P(SN)(V SN V SN ) 4-6 4-6
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ROC 1/2 N, SN ROC 4-11 4-11 (detectability) d = (M SN M N )/ N
d ROC 4-12 4-12 d = z(+/SN) z(+/N) ROC d P(+/SN), P(+/N) P(+/SN)
z(+/SN) ; P(+/N) z(+/N) d
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ROC 2/2 = f SN (C)/ f N (C) ROC f SN (C)/ f N (C) =
P(+/SN)/P(+/N) ROC P(+/SN) f SN (C) ; P(+/N) f N (C)
5/8 (paired comparison scales) Thurstone n(n-1)/2 F f xy x y
5-2 5-2
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6/8 (paired comparison scales) p xy (1/N) f xy (1/N) (N f yx )
1 P yx f xy p xy z xy (N ) (discriminal process) 5-4 5-4
(discriminal dispersion)
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7/8 (paired comparison scales) 5-4 5-4 (discriminal difference)
B A B A 0 S B S A B A 0 S A S B B A ean B A Var Var( B ) Var( A )
2rVar( B )Var( A ) B A z BA Var
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8/8 (paired comparison scales) 5-4 5-4 1. B A r 0 2. Var( A )
Var( B ) 1 B A z BA 2 F p z transposed z 5-3 5-3 2 5-4 5-4