Final answer:
Informal assessments are unstructured and spontaneous evaluation tools that emphasize standardized procedures and quantitative data.
Step-by-step explanation:
Informal assessments are unstructured and spontaneous evaluation tools that emphasize standardized procedures and quantitative data. They are different from comprehensive evaluation tools, such as self-report inventories and projective tests, which are more structured and objective. Informal assessments allow instructors to confirm core conceptual understanding, elicit brief explanations that demonstrate student understanding, and offer more in-depth assignments that enable learners to dive more deeply into a subject or skill.