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35 andrew gelman stats-2010-05-16-Another update on the spam email study


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Introduction: I think youall are probably getting sick of this by now so I’ll put it all below the fold. Akinola Modupe and Katherine Milkman responded to my email about their study : We want to clarify the reason we believe that the use of deception and a lack of informed consent were appropriate and ethical for this research study. In this project, we were studying how the timing of a decision affects discrimination based on race and/or gender. The emails all participants in our study received were identical except for a) the sender’s name (we used 20 names that pretesting revealed were strongly associated with being either Caucasian, Black, Indian, Chinese or Hispanic, as well as associated with being male or female) and b) whether the meeting requested was for today or for a week from today. Recipients were randomly selected and were randomly assigned to one of the race/gender/timing conditions. This study design will allow us to test for baseline levels of discrimination in acade


Summary: the most important sentenses genereted by tfidf model

sentIndex sentText sentNum sentScore

1 Akinola Modupe and Katherine Milkman responded to my email about their study : We want to clarify the reason we believe that the use of deception and a lack of informed consent were appropriate and ethical for this research study. [sent-2, score-0.929]

2 This study design will allow us to test for baseline levels of discrimination in academia (e. [sent-6, score-0.629]

3 To study discrimination, it is crucial that study participants are not aware they are being observed, as this knowledge has been shown to dramatically change peoples’ behavior. [sent-14, score-0.776]

4 Thus, we obtained permission from our IRBs to employ deception. [sent-15, score-0.312]

5 To study discrimination, it is also crucial that informed consent be waived. [sent-16, score-0.655]

6 If participants were offered an opportunity to opt into our research study even without knowing its purpose, it would likely have biased our sample towards including only those professors who would agree to a meeting. [sent-17, score-0.615]

7 “Audit” research employing deception and a waiver of informed consent has been conducted many times before, and in fact, typically with far more costs to participants. [sent-18, score-0.537]

8 Past research of this type has examined discrimination in housing markets, employment markets, car purchases, and mortgage applications (see for example Ayres & Siegelman (1995), Bertrand & Mullainathan (2004), Kenney & Wissoker (1994), Neumark et al. [sent-19, score-0.33]

9 There were two potential downsides to our study that some of the postings on your blog have highlighted and that we attempted to mitigate with our experimental design. [sent-21, score-0.423]

10 In some cases, our study (1) absorbed faculty time and (2) created a potential negative externality (our study may have reduced faculty members’ likelihood of responding to future messages from prospective PhD students). [sent-22, score-1.486]

11 We believe that the importance of gaining an understanding of discrimination in academia is worth the sacrifice of faculty time imposed by our request for a quickly-cancelled 10-minute meeting. [sent-24, score-0.673]

12 Regarding the latter issue (a negative externality), we hope faculty will not neglect emails from prospective PhD students in the future as a result of our study. [sent-25, score-0.439]

13 As I noted in one of the comment threads, I can respect the view that responding to an email is a minor effort that should not be worth $10–but I’d like to be the judge of that! [sent-36, score-0.271]

14 In general, I’d think you’d get happier participants if you asked permission ahead of time or compensated afterward. [sent-37, score-0.492]

15 As also discussed, it would not be hard to ask for permission in a study that involves deception, for example by sending an email several weeks in advance saying that they are b-school professors doing a research project and that they will contact me in a few weeks by email. [sent-40, score-1.041]

16 Then, if I agree to participate, the rest of the study goes as planned, and I’d have no idea that the purported student’s email is fake. [sent-42, score-0.392]

17 Or the researchers could do the study as is, and then offer some compensation at the end. [sent-43, score-0.291]

18 Again, if the study is worth bothering 6300 people (without asking for their permission), I think it’s worth compensating these people a bit. [sent-44, score-0.665]

19 To return to point 1, I certainly don’t feel the people who did this study should be punished in any way, nor do I feel that the IRB’s were asleep at the switch. [sent-46, score-0.358]

20 ) I think it’s fine to approve this sort of study, and I also favor ethics guidelines under which it would be expected to ask the permission of research subjects, or to compensate them afterward (or both). [sent-49, score-0.549]


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