Evidence
Meta-analysis of studies into formative assessment have indicated significant learning gains where formative assessment is used, across all content areas, knowledge and skill types, and levels of education. Marzano states:
"Recall the finding from Black and Wiliam’s (1998) synthesis of more than 250 studies that formative assessments, as opposed to summative ones, produce the more powerful effect on student learning. In his review of the research, Terrance Crooks (1988) reports that effects sizes for summative assessments are consistently lower than effect sizes for formative assessments. In short, it is formative assessment that has a strong research base supporting its impact on learning." (Marzano, 2006, p. 9).Researchers have concluded that standards-based assessments are an effective way to “prescribe instruction and to ensure that no child is left behind” (Marzano, 2006 p. 13).
The strongest evidence of improved learning gains comes from short-cycle (over seconds or minutes within a single lesson) formative assessment, and medium to long-term assessment where assessment is used to change the teacher's regular classroom practice.
Read more about this topic: Formative Assessment
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