Quiz 2

Question 1

Signals are always detected in a ________ noise, which varies randomly

Answer 1

background

Question 2

Sensitivity is each trial subject determines if the train contanied the _______ or ______ plus the noise

Answer 2

noise
signal

Question 3

Between the N and the SN is called _________ or _______

Answer 3

d prime
or
sensitivity

Question 4

what are the two nonsensory variables affecting detection?

Answer 4

1. probalibty of stimulus occurrance
2. consequece of response

Question 5

what are the 4 outcomes

Answer 5

Hit
Miss
False alarm
Correct rejection

Question 6

ROC stands for

Answer 6

receiver opertaitng characteristic

Question 7

As detectablity increases, the ROC curve ____ more ______

Answer 7

rises more rapidly

Question 8

bottom of the curve criterion is _____
Top of the curve criterion is ______

Answer 8

high
low

Question 9

d prime equation
beta equation
c and c prime as well

Answer 9

Z (hits - z(false alarms
O(hits) / O(false alarms)
C = -.5 (Z(hits +Z(false alarms)
C prime = C / d prime

Question 10

payoff for correct detection = hit and false alarm rates willl ______

rejection?

Answer 10

increase
decrease

Question 11

When the likelihood ratio is > 1.0 more likely the sample came from ____

Answer 11

SN

Question 12

Listener picks their own ______ ratio and sets a criterion when the sample is at or above B, the listener will choose ____

Answer 12

likelihood
SN

Question 13

Optimal criterion the value of the ________ _____ that results the best performance

Answer 13

likelihood ratio

p(z) / p(SN)