ABLE Technical Foundations 3

Question 1

Which item response theory (IRT) model uses only item difficulty as its parameter?

Accepted Answer

Rasch (1PL) model

Answer

The Rasch model (one-parameter logistic model) estimates examinee ability based solely on item difficulty, assuming equal discrimination across items.

Question 2

A normal distribution of test scores has a mean of 70 and a standard deviation of 10. Approximately what percentage of scores fall between 60 and 80?

Accepted Answer

68%

Answer

In a normal distribution, approximately 68% of scores fall within one standard deviation above and below the mean.

Question 3

Which type of language test requires examinees to produce unrestricted written or spoken responses scored by raters?

Accepted Answer

Constructed-response test

Answer

Constructed-response tests require examinees to produce their own responses, which are then evaluated by trained raters using scoring criteria.

Question 4

What is the primary purpose of anchor items in equating across multiple test forms?

Accepted Answer

To link scores from different forms to a common scale

Answer

Anchor items appear on multiple test forms and are used to statistically link and equate the score scales of those forms.

Question 5

Inter-rater reliability is BEST measured by which statistic when ratings are on an ordinal scale?

Accepted Answer

Cohen's kappa

Answer

Cohen's kappa measures agreement between two raters on categorical or ordinal data while correcting for agreement due to chance.

(ABLE) Assessment Board for Language Examinations Practice Test

(ABLE) Assessment Board for Language Examinations Practice Test

ABLE Technical Foundations 3