<prompt> Gadzira shanduro yakaoma zvikuru yemutsara uyu Chishandiso chinotarisa urefu hweshoko nhamba yetsamba uye urefu hwemutsara nhamba yeshoko uye inogadzira chiyero chakabatana nechikoro chepuraimari cheUS.  <response>: Chokwadika, shanduro yakaoma zvikuru yemutsara ndeiyi Chigadzirwa chinotarisa urefu hweshoko nhamba yetsamba uye urefu hwemutsara nhamba yamashoko uye inobereka chikamu sd yeOhio State, Jeanne S. Chall weReading Laboratory yeHarvard, uye George R. Klare weOhio University. 