4,111 reputation
1436
bio website chil.rice.edu/jzemla
location Houston, TX
age
visits member for 2 years, 11 months
seen 3 hours ago

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 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 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.
Feb
28
revised What are the effects of social rejection on the brain?
added citation
Feb
17
reviewed Approve How to adjust SSE or RMSE for the number of free parameters in the model?