Duba zuwa sashi na ƙasa sannan ka amsa tambayar daga baya a cikin harshe ɗaya kamar yadda sashi: Passage: Nazarin gwaji ya ƙunshi ɗaukar ma'aunin tsarin da ake nazari, sarrafa tsarin, sannan kuma ɗaukar ƙarin ma'auni ta amfani da tsari ɗaya don sanin ko sarrafawa ya canza ƙimar ma'aunin. Sabanin haka, nazarin dubawa ba ya haɗa da sarrafa gwaji. Maimakon haka, ana tattara bayanai kuma ana bincika daidaito tsakanin masu hasashen da amsawa. Tambaya: Menene ake bincike?
dangantaka tsakanin masu hasashen da amsawa