Multiple Choice
Which of the following is used to estimate the number of items that should be added to a test to achieve a specified reliability?
A) KR 20
B) coefficient alpha
C) Spearman-Brown prophecy formula
D) split-half technique
Correct Answer:

Verified
Correct Answer:
Verified
Q9: A reliability coefficient of .60 suggests that<br>A)64%
Q10: The kappa statistic is used to<br>A)assess the
Q11: A split-half correlation, KR 20, and coefficient
Q12: Carryover effects only affect reliability when changes
Q13: As opposed to reliability based on the
Q15: Classical Test Theory assumes<br>A)the length of a
Q16: Describe some of the advantages and disadvantages
Q17: Reliability theory combines De Moivre's concept of
Q18: According to classical test theory, errors of
Q19: The prophecy formula is used to<br>A)predict expected