ASummative tests
BStandardised achievement tests
CPortfolio-based assessments
DCloze tests
Answer:
C. Portfolio-based assessments
Read Explanation:
Portfolio-based assessments are best suited for measuring interlanguage development over time.
A Portfolio is a collection of a learner's work accumulated over a period, allowing assessors to track their progress, identify patterns in their development, and observe how their language skills evolve across different stages.
This dynamic representation of language acquisition aligns perfectly with the concept of interlanguage, which describes the gradual development of a learner's second language.
Summative tests are typically given at the end of a unit or course to measure overall achievement. They provide a snapshot of a student's knowledge at one specific point, not the process of development over time.
Standardised achievement tests are designed to measure a learner's proficiency against a norm. While they can show progress, they are not tailored to capture the specific, idiosyncratic, and developmental errors that characterize interlanguage. They often focus on what a student can do, rather than the developmental path of their linguistic system.
Cloze tests are used to measure reading comprehension and overall language proficiency by asking students to fill in missing words in a text. While they can be a component of a test, they do not provide a rich enough body of evidence to track the complex, systematic development of a learner's interlanguage over a long period.