kev tshawb fawb tsim nyob rau hauv uas ib pab pawg tau pom nyob rau hauv ib lub sijhawm tom qab muaj qee qhov xwm txheej, kev kho mob, lossis kev cuam tshuam. Vim tias tsis muaj pawg tswj hwm qhov twg los ua qhov sib piv, nws yog qhov tsim tsis muaj zog; ib qho kev hloov pauv tau sau tseg tsuas yog xav tias tau tshwm sim los ntawm qhov xwm txheej.
Vim li cas cov ntaub ntawv kawm ua ntej kev sim tsim?
Pre-experimental designs hu ua xws li vim lawv feem ntau tshwm sim ua ntej kev sim tiag tiag. … Nyob rau hauv cov rooj plaub uas qhov kev tswj hwm ntawm qhov kev txhawb zog yog kim heev los yog tsis muaj peev xwm ua tau, ib qho kev tshawb fawb kev txhaj tshuaj yuav raug siv. Hauv qhov piv txwv no, tsis muaj kev sim ua ntej yog tswj hwm, thiab tsis yog pawg tswj hwm tam sim no.
piv txwv ntawm kev sim ua ntej yog dab tsi?
Ib hom kev sim ua ntej yog qhov kev tshawb fawb ntawm ib qho kev txhaj tshuaj uas ib pab pawg tau raug kho los yog mob thiab ntsuas tom qab ntawd kom pom tias muaj kev cuam tshuam dab tsi. Tsis muaj pab pawg tswj kev sib piv. Ib qho piv txwv ntawm qhov no yuav yog tus kws qhia ntawv siv txoj kev qhia tshiab rau lawv cov chav kawm.
Yuav ua li cas yog ib pab pawg pretest posttest tsim?
Ib pab pawg pretest-posttest tsim yog hom kev tshawb fawb tsim uas feem ntau siv los ntawm cov kws tshawb fawb txog kev coj cwj pwm los txiav txim siab txog kev kho mob lossis kev cuam tshuam ntawm cov qauv muab. … Thawj qhov tshwj xeeb yog siv ib pab pawg neeg koom (piv txwv li, ib pab pawg tsim).
yog dab tsiPreexperimental research design?
Kev sim ua ntej yog daim ntawv yooj yim tshaj plaws ntawm kev tshawb fawb tsim. Hauv kev sim ua ntej ib pawg lossis ntau pab pawg tau pom tom qab qee tus neeg sawv cev lossis kev kho mob xav tias yuav ua rau muaj kev hloov pauv.
