WebDec 11, 2002 · Aims Strong associations between marijuana use and initiation of hard drugs are cited in support of the claim that marijuana use per se increases youths’ risk of initiating hard drugs (the ‘marijuana gateway’ effect). This report examines whether these associations could instead be explained as the result of a common factor—drug use … WebJonathan D Schweig 1 , John F Pane 1 , Daniel F McCaffrey 2 Affiliations 1 RAND Corporation. 2 Educational Testing Service. PMID: 32271041 DOI: 10.1037/met0000258 Abstract Randomized control trials (RCTs) often use clustered designs, where intact clusters (such as classroom, schools, or treatment centers) are randomly assigned to treatment …
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WebNov 23, 2016 · DANIEL F. McCAFFREY is Senior Statistician, RAND, 201 North Craig St. Suite 202, Pittsburgh, PA 15213; [email protected]. His areas of specialization are … WebMar 24, 2024 · Daniel F. McCaffrey is a senior research director at ETS. View Abstract. Article available in: Vol 20, Issue 1, 2024. Related Articles. Similar Articles: Similar Articles: View all > Fast and wild: Bootstrap inference in Stata using boottest Show details . Performance simulations for categorical mediation: Analyzing khb estimates of mediation ... manetta gale randall white
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WebT’kul odia a F’lar. Siempre lo ha culpado de todo lo que sucedía en el Meridional. Ahora que T’kul se ha quedado sin su dragón, enloquecerá. ¡Matará a F’lar! Jaxom acercó hacia sí a la muchacha, preguntándose cuál de ellos dos necesitaba … http://www.carnegieknowledgenetwork.org/technical-panel/ WebDaniel F McCaffrey 1 , Greg Ridgeway, Andrew R Morral Affiliation 1Public Safety and Justice Program, Drug Policy Research Center, RAND Corporation, 201 North Craig … manetta gommone