Jeff

3,476 reputation

828

bio	website	chil.rice.edu/jzemla
	location	Houston, TX
	age	28
visits	member for	1 year, 4 months
	seen	yesterday
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	3,476 reputation	bio	website	chil.rice.edu/jzemla	visits	member for	1 year, 4 months
828 badges		location	Houston, TX		seen	yesterday

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Mar 17	answered	How does displaying existing votes to a poll influence subsequent voting behaviour?
Mar 16	revised	Term for incentives working without conscious awareness deleted 58 characters in body
Mar 16	comment	Term for incentives working without conscious awareness The term is "implicit"
Mar 15	comment	What is the threshold where actions are perceived as “instant”? Side note: CHI is not like most conferences. They are an "archival" publication and have strict rules about the originality of content. While many researchers treat conferences as a stepping stone to a journal publication, CHI is often the end of the line for research in HCI.
Mar 13	reviewed	Leave Open How to compute Chi-square value and degrees of freedom in Excel?
Mar 13	reviewed	Leave Open Autism: Social Skills: Body Language and Facial Expressions
Mar 13	reviewed	Leave Open Analyzing control questions data for a survey
Mar 13	reviewed	Leave Open What is it called when a student tends to speak about what he knows?
Mar 13	answered	Lexical Decision (Web-)App
Mar 11	comment	Analyzing control questions data for a survey As an aside, in many experiments, instructions will apply to a block of questions. Putting instructions in between a question and its answers is not feasible. I do agree that the heading title itself "Almost done!" is filler, which probably leads a lot of people to skip that section. It should probably say "Instructions". But I don't think the placement of the any of the elements is a problem here. In any case, this is a debate for chat or for ux.SE and doesn't really have a bearing on my answer IMHO.
Mar 11	comment	Analyzing control questions data for a survey I agree that good UI is important. There are many reasons why a participant may not follow instructions, and bad UI is one of them. But from the data analyst's standpoint, it really doesn't matter what the reason is. The IMC detects failure to follow instructions for any reason.
Mar 11	comment	Analyzing control questions data for a survey @what that is sort of the point. many psychology experiments contain blocks of text that explain how to answer the following questions. it's important that you read it to answer them correctly. if you skip sections that you don't "expect to have relevant instructions" then, well, you may be skipping relevant instructions. case in point, the facebook survey. however, this is not the only example of an IMC; try also reading the oppenheimer reference or do a scholar search for "instructional manipulation check"
Mar 11	revised	Analyzing control questions data for a survey deleted 3 characters in body
Mar 11	comment	Analyzing control questions data for a survey Ah, perhaps I should change the wording to "Internal reliability is the degree to which..." and "Cronbach's alpha tests..." I can see how my definition is not in line with what Cronbach's alpha is testing, but still think it's an accurate description of what internal reliability is.
Mar 11	comment	Analyzing control questions data for a survey @RJ that means Cronbach's alpha might not be measuring internal reliability, not that the definition of internal reliability is wrong. According to the paper you cite, "Internal consistency refers to the interrelatedness of a set of items" which seems in line with what I am saying.
Mar 11	answered	Does associating a color with numbers improve math learning?
Mar 11	answered	Analyzing control questions data for a survey
Mar 11	answered	How rare is synesthesia?
Mar 8	comment	Why we can't read in dreams? please cite a source for your claim that 'we cant read in dreams'
Mar 8	comment	How can one find out if he/she is brainwashed? @Alex I noticed you placed a bounty on this question, though there are already several upvoted answers. It might help if you explain why these answers are insufficient, and what specifically you are looking for.