Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 6 of 6
Full-Text Articles in Entire DC Network
Analyzing Social Experiments As Implemented: A Reexamination Of The Evidence From The Highscope Perry Preschool Program, James Heckman, Seong Hyeok Moon, Rodrigo Pinto, Peter A. Savelyev
Analyzing Social Experiments As Implemented: A Reexamination Of The Evidence From The Highscope Perry Preschool Program, James Heckman, Seong Hyeok Moon, Rodrigo Pinto, Peter A. Savelyev
Arts & Sciences Articles
Social experiments are powerful sources of information about the effectiveness of interventions. In practice, initial randomization plans are almost always compromised. Multiple hypotheses are frequently tested. “Significant” effects are often reported with p‐values that do not account for preliminary screening from a large candidate pool of possible effects. This paper develops tools for analyzing data from experiments as they are actually implemented.
We apply these tools to analyze the influential HighScope Perry Preschool Program. The Perry program was a social experiment that provided preschool education and home visits to disadvantaged children during their preschool years. It was evaluated by …
The Rate Of Return To The Highscope Perry Preschool Program, James J. Heckman, Seong Hyeok Moon, Rodrigo Pinto, Peter A. Savelyev, Adam Yavitz
The Rate Of Return To The Highscope Perry Preschool Program, James J. Heckman, Seong Hyeok Moon, Rodrigo Pinto, Peter A. Savelyev, Adam Yavitz
Arts & Sciences Articles
This paper estimates the rate of return to the HighScope Perry Preschool Program, an early intervention program targeted toward disadvantaged African-American youth. Estimates of the rate of return to the Perry program are widely cited to support the claim of substantial economic benefits from preschool education programs. Previous studies of the rate of return to this program ignore the compromises that occurred in the randomization protocol. They do not report standard errors. The rates of return estimated in this paper account for these factors. We conduct an extensive analysis of sensitivity to alternative plausible assumptions. Estimated annual social rates of …
How To Tell A Creek Story In Five Past Tenses, Jack B. Martin
How To Tell A Creek Story In Five Past Tenses, Jack B. Martin
Arts & Sciences Articles
Creek (or Muskogee) is among a small number of languages around the world that distinguish multiple tenses based on degrees of remoteness from the time of speaking. Those working on Creek have rarely agreed on the number of tenses or on their meanings, however, and have rarely examined the seemingly intricate ways that speakers use tenses in texts. This paper argues that Creek has one future tense and five past tenses. It finds, however, that speakers may cast events within a single time frame in several different tenses based on immediacy. That is, just as English speakers will sometimes use …
Economic Returns To Early Education For Disadvantaged Children: Lessons From The Highscope Perry Preschool Program (In Russian), James Heckman, Seong Moon, Rodrigo Pinto, Peter A. Savelyev, Adam Yavitz
Economic Returns To Early Education For Disadvantaged Children: Lessons From The Highscope Perry Preschool Program (In Russian), James Heckman, Seong Moon, Rodrigo Pinto, Peter A. Savelyev, Adam Yavitz
Arts & Sciences Articles
No abstract provided.
Where Things Stand With Hazardous Waste Regulation, Sarah L. Stafford
Where Things Stand With Hazardous Waste Regulation, Sarah L. Stafford
Arts & Sciences Articles
No abstract provided.
Epistemology For A Humanistic Human Biology: The Case Of The New York African Burial Ground Project At Howard University, Michael L. Blakey
Epistemology For A Humanistic Human Biology: The Case Of The New York African Burial Ground Project At Howard University, Michael L. Blakey
Arts & Sciences Articles
"A basic respect for the meaning of culture (that human perceptions, ideas, and behaviors learned) demands us to accept that the human practice of science is thoroughly embedded in culture..."