The item discrimination index that correlates how a test taker answers (i.e., correct or incorrect) a given test item and their overall test score, while correcting for the fact that you are artificially dichotomizing performance on the item, is known as a ________ correlation coefficient.
A) Biserial
B) Point-biserial
C) Pearson
D) Tetrachoric
Correct Answer:
Verified
Q1: Based on Module 13 in Shultz, Whitney,
Q2: From a purely psychometric standpoint of wanting
Q3: In practice, most tests in educational and
Q4: Under Classical Test Theory (CTT) item analysis,
Q5: Most item discrimination indexes correlate how a
Q7: Often times a multiple choice test item
Q8: One major drawback when using item-criterion data
Q9: If Tong has been tasked with developing
Q10: The use of educational technology (e.g., clicker
Q11: Briefly describe the advantage of first examining
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