<![CDATA[Thiis reiseiarch aiims to deiteirmiinei thei eiffeict of Probleim Baseid Leiarniing Modeil on thei criitiical thiinkiing abiiliity of fiifth-gradei studeints iin sciieincei leiarniing at SD Neigeirii 091254 Batu Onom. Thei typei of reiseiarch useid iis quantiitatiivei reiseiarch wiith a prei-eixpeiriimeintal deisiign usiing thei Onei Group Deisiign Preiteist-Postteist deisiign. Thei populatiion of thiis study iis all fiifth-gradei studeints wiith a samplei of 21 studeints. Thei data colleictiion teichniiquei useid iin thiis study iis eissay teists (preiteist-postteist). Thei reisults of thei analysiis of thei criitiical thiinkiing abiiliity of fiifth-gradei studeints showeid an aveiragei preiteist scorei of 40.09 and an iincreiaseid criitiical thiinkiing abiiliity data obtaiineid from thei aveiragei postteist scorei of 82.24. Theisei fiindiings arei supporteid by thei N-Gaiin Teist reisults, whiich show that thei aveiragei N-Gaiin Scorei iis 70.14, cateigoriizeid as hiigh, thus iit can bei concludeid that variiablei X (Probleim Baseid Leiarniing Modeil) siigniifiicantly iinflueinceis variiablei Y (Criitiical Thiinkiing Abiiliity).]]>
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