Jeromy Anglim

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I am a Lecturer in the School of Psychology at Deakin University bridging I/O psychology and statistics.

I'm quite active on the Cognitive Sciences and Statistics Stack Exchanges.

You can find me also on:


243 Comments

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Feb
23
 comment When is higher confidence predictive of less accuracy?
Interesting article. I wonder if that is any more than just a result of the imperfect correlation between actual ability and perceived ability (I've often seen correlations in the .2 to .6 range), along with the inherent floor and ceiling effects of such scales. I.e., if you have low ability, you have more scope to over estimate. If you are high ability, then you have minimal scope to overestimate because you are already high.
Feb
18
 comment Are autonomy, mastery, and purpose the most important motivators?
Also see this related question inspired by Dan Pink's claim that rewards do not improve performance on cognitive tasks.
Feb
18
 comment How do humans optimize noisy multi-variable functions in experimental settings?
Of course, adding noise, including multiple input variables, and making the feedback direction-less would make the task harder.
Feb
18
 comment How do humans optimize noisy multi-variable functions in experimental settings?
Thanks for the interesting thoughts. Now that you mention it, I had had a look at the Kalish et al study a few years back. However, I think there are two big differences: the study is iterative and therefore assumptions about the relationship carry over into subsequent trials; Also, from a quick look, the paper seems to be about describing the functional form rather than finding the optimum. Surely almost anyone can estimate an unkonwn numeric quantity (e.g., 271) when the feedback they are given is "higher" or "lower" (e.g., 200, "higher", 300, "lower", 250, "higher", 280, "lower", etc.)
Feb
15
 comment How do humans optimize noisy multi-variable functions in experimental settings?
@jonsca Example: On a given trial, the participant provides raw values for X, Z and W, and the program returns a Y based on the unknown function. The participant does not know the underlying function other than perhaps the information that there is a global minimum Y value that they are trying to find. Thus, on the next trial, they might try a different set of X, Z and W values, and they would get a new Y value. And thus, over time, they would tweak the values to try to find the minimum. Their performance might be measured as reverse of the sum of their Y obtained values.
Feb
15
 comment How do humans optimize noisy multi-variable functions in experimental settings?
@ArtemKaznatcheev I'm assuming that there is an actual set of input values that results in a global minimum; you could imagine an underlying quadratic function if you like, but I'm interested in more general problems.
Feb
9
 comment Bias by which we tend to accept vague descriptions of ourselves
I think that's fine. I started meta thread as I often answer own questions, meta.cogsci.stackexchange.com/questions/156/…
Feb
9
 comment Accuracy of social judgements of observers watching business meetings
Hi John. Welcome to the site. I imagine your question will get some interesting responses. You may also want to ask 3 or 4 separate questions focusing on particular aspects (e.g., accuracy could be one question; awareness of inference could be another; major cues could be another).
Feb
8
 comment Why do some people seem to disregard the choice of doing nothing (The Zero Choice)?
I didn't -1 it; but here are a few things to consider: It's an assumption that there are "types of people" who ignore the zero choice, rather than it being a decision making strategy that can be used. What do you mean by a difference in mental activity (at the time of making the decision? or in general?)?
Feb
8
 comment What are the major changes in the APA Publication Manual from 5th to 6th editions?
@ArtemKaznatcheev The 6th edition is fairly new. Some journals are still using the 5th. Some templates are still stuck in the 5th. People may know the 5th, but there will always be a first time for the 6th. For something as important as a journal submission, you may want to get it right. Of course reading the actual 6th edition is a good idea, but a reasonable online overview of the changes would presumably be helpful.
Feb
8
 comment What are the major changes in the APA Publication Manual from 5th to 6th editions?
Okay, I've removed the tag. I agree we don't want a whole pile of simple questions related to APA style (e.g., "where do I put the comma" type questions)
Feb
8
 comment What are the major changes in the APA Publication Manual from 5th to 6th editions?
As this is the first question about publication process rather than substantive content, I've asked the question on meta about whether people see such questions as in scope for the site: meta.cogsci.stackexchange.com/questions/152
Feb
6
 comment What skills are required to build simulations of the human brain?
Hi Sam. Welcome to the site. Could you clarify more precisely what your goal is, perhaps with some references to examples on the web of something similar?
Feb
6
 comment How to efficiently locate existing psychology and social science measures?
I hope you don't mind; As I hadn't heard from you for a day, I've applied a few edits to your question. Hopefully it still reflects what you were asking. I also think that after this tweaking, the question could be a useful resource for the site.
Feb
6
 comment What are good examples of applying dynamical systems in cognitive science?
Welcome to the site. Those were both great and welcome questions; I hope you don't mind; but I was hoping you could ask your second question : "For a person with mathematical background what would be a good way to dive into the field of cognitive science?" as a separate question; the site works best when there is one topic per question (unless they are highly related, which in this case, I don't think they are).
Feb
5
 comment Is it possible to improve reading speed and visual comprehension by doing exercises?
Welcome to the site. It's good to see reference to the scientific literature. It sounds like an interesting study. What do you think are the implications of the study for whether visual training exercises can improve reading speed and comprehension?
Feb
5
 comment What is the optimal length of a training session?
@Casebash let me know; but I think a dedicated question specifically on dance instruction (e.g., with dance instruction in the title) that focuses on the specifics of your situation would be a better option at this point, perhaps with a link to this question.
Feb
5
 comment What is the optimal length of a training session?
ahh, okay. I'm happy to modify my answer, or perhaps a separate question is in order; So you're saying, if you're teaching a number of different tasks in a training session, how long should you spend on any one task? Also, just curious, is there a particular task or domain that motivated the question for you?
Feb
5
 comment What is the optimal length of a training session?
Does the question need to be limited to "initial sessions" or would it be simpler to ask in general: how long should a practice session be?
Feb
5
 comment What is the optimal length of a training session?
What are you defining as "optimal"? amount learnt in a given day? What if rate of learning slows down over time but does not stop completely, what would optimal mean then?
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