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For questions about the application of specific experimental methods to study psychology.

2
votes
There is generally an intervening stage between the sound card and the speaker, the amplifier. From the output of the amplifier to the speaker, there is an electrical signal traveling at like 0.01C th …
answered Jan 9 by StrongBad
1
vote
Depending on how you collect the data, reaction times collected "online" will likely be different from those collected "on-site". When considering reaction times, it is important to decide if the reac …
answered Mar 22 '15 by StrongBad
1
vote
A power analysis is typically based on the difference in the mean to be detected and the expected standard deviation of the data. The amount of variation in the data (i.e., the size of the standard de …
answered Mar 30 '17 by StrongBad
3
votes
It generally helps to provide some sort of specification as to how well you want to control the timing. There are 4 orders of magnitude difference between the 100 ms timing accuracy required for audit …
answered Sep 9 '14 by StrongBad
5
votes
It really depends on what you mean by difference in pitch. Subjects can discriminate differences in frequency for very short tones, but it does not mean they are being perceived as pitch differences. …
answered Nov 28 '14 by StrongBad
1
vote
QUEST is one method of measuring thresholds. There are lots of other procedures including method of constant stimuli, modified up-down staircases, PEST, and ZEST. Each has their own set of requirement …
answered Aug 1 '18 by StrongBad
6
votes
There is a lot going on in your question. QUEST, as well as many other adaptive procedures, is well suited for a task like estimating morph distance in a 2-AFC paradigm. There are, however, a couple o …
answered Jul 17 '17 by StrongBad
2
votes
I find that it is the signal strength of the second signal that more so determines correct detection (0,1) The ideal unbiased observer bases the decision on $X1-X2$ while it sounds like your subj …
answered Jun 16 '17 by StrongBad
2
votes
Probably not. The closest thing I am aware of is Mayor et al (2016) [The Effect of Chronic Dieting Goals on Auditory Perceptual Biases] where they propose the existence of “wishful hearing,” whic …
answered Apr 4 '18 by StrongBad
1
vote
It is going to mean bad things. If you can only create stimuli with a predefined non uniformly sampled set of "levels" then the the corresponding percent correct that the staircase will track will dep …
answered Nov 5 '14 by StrongBad