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FAQ
About
State of K is a platform for answering a question by sharing and summarizing a list of all the studies that examine that question.
How it Works
PUBLIC AFFAIRS QUESTIONS
Do police body cameras reduce use of force by the police?
15 Studies
(2013 to 2019)
Insuff. evidence
Mixed results
No
Yes
Do gun buyback programs reduce gun violence?
11 Studies
(1994 to 2016)
Insuff. evidence
Mixed results
No
Yes
Do undocumented immigrants commit more crime than native-born Americans?
10 Studies
(2008 to 2018)
Insuff. evidence
Mixed results
No
Yes
Does gerrymandering cause polarization?
6 Studies
(2001 to 2016)
Insuff. evidence
Mixed results
No
Yes
FINANCE QUESTIONS
Did quantitative easing reduce US mortgage rates?
3 Studies
(2012 to 2016)
Insuff. evidence
Mixed results
No
Yes
Does money invested 50% in a US stock index fund and 50% in a US bond index fund have at least a ...?
11 Studies
(1994 to 2017)
Insuff. evidence
Mixed results
No
Yes
Does money invested in a US stock index fund have at least a 95% chance of lasting for 30 years a...?
18 Studies
(1994 to 2018)
Insuff. evidence
Mixed results
No
Yes
CHILD CARE QUESTIONS
How do I overcome my fear of childbirth?
25 Studies
(1998 to 2018)
Lit. review
Highly regarded source
No info
Do formula-fed infants sleep more than breastfed infants?
14 Studies
(1983 to 2017)
Insuff. evidence
Mixed results
No
Yes
SPORTS QUESTIONS
Is there really a home-field advantage in sports?
46 Studies
(1977 to 2018)
Insuff. evidence
Mixed results
No
Yes
Do baseball players perform worse in years where they perceive themselves to be under-compensated?
6 Studies
(1979 to 1999)
Insuff. evidence
Mixed results
No
Yes
Why is there a homefield advantage in baseball?
3 Studies
(2005 to 2015)
Lit. review
Highly regarded source
No info
PUBLIC AFFAIRS QUESTIONS
Do police body cameras reduce use of force by the police?
15 Studies
(2013 to 2019)
Insuff. evidence
Mixed results
No
Yes
Do gun buyback programs reduce gun violence?
11 Studies
(1994 to 2016)
Insuff. evidence
Mixed results
No
Yes
Do undocumented immigrants commit more crime than native-born Americans?
10 Studies
(2008 to 2018)
Insuff. evidence
Mixed results
No
Yes
Does gerrymandering cause polarization?
6 Studies
(2001 to 2016)
Insuff. evidence
Mixed results
No
Yes
FINANCE QUESTIONS
Did quantitative easing reduce US mortgage rates?
3 Studies
(2012 to 2016)
Insuff. evidence
Mixed results
No
Yes
Does money invested 50% in a US stock index fund and 50% in a US bond index fund have at least a ...?
11 Studies
(1994 to 2017)
Insuff. evidence
Mixed results
No
Yes
Does money invested in a US stock index fund have at least a 95% chance of lasting for 30 years a...?
18 Studies
(1994 to 2018)
Insuff. evidence
Mixed results
No
Yes
CHILD CARE QUESTIONS
How do I overcome my fear of childbirth?
25 Studies
(1998 to 2018)
Lit. review
Highly regarded source
No info
Do formula-fed infants sleep more than breastfed infants?
14 Studies
(1983 to 2017)
Insuff. evidence
Mixed results
No
Yes
SPORTS QUESTIONS
Is there really a home-field advantage in sports?
46 Studies
(1977 to 2018)
Insuff. evidence
Mixed results
No
Yes
Do baseball players perform worse in years where they perceive themselves to be under-compensated?
6 Studies
(1979 to 1999)
Insuff. evidence
Mixed results
No
Yes
Why is there a homefield advantage in baseball?
3 Studies
(2005 to 2015)
Lit. review
Highly regarded source
No info
CATEGORIES
Public Affairs
Finance
Child Care
Sports
KUDOS
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"State of K is an important step forward in balancing democracy and expertise."
