CBT Scoring Models and Reporting 2

Question 1

What does a scaled score accomplish in CBT reporting?

Accepted Answer

It converts raw scores to a common scale across different test forms

Answer

Scaled scores equate different test forms to a common scale so that scores are comparable regardless of which version an examinee received.

Question 2

In Item Response Theory (IRT), the 'b' parameter refers to:

Accepted Answer

Item difficulty

Answer

The 'b' parameter in IRT represents item difficulty, indicating the ability level at which an examinee has a 50% chance of answering correctly.

Question 3

Which standard-setting method requires panelists to estimate the probability that a borderline candidate answers each item correctly?

Accepted Answer

Angoff method

Answer

The Angoff method asks panelists to estimate the probability that a minimally competent (borderline) candidate would answer each item correctly, and the average becomes the cut score.

Question 4

A score report shows a candidate scored at the 78th percentile. This means:

Accepted Answer

The candidate scored higher than 78% of the norm group

Answer

A percentile rank of 78 means the candidate performed better than 78% of the reference (norm) group.

Question 5

What is the primary purpose of vertical scaling in educational CBT programs?

Accepted Answer

To compare scores across different grade levels over time

Answer

Vertical scaling links tests across different grade levels so student growth can be measured on a single developmental score scale.

CBT - Computer Based Testing Practice Test

CBT - Computer Based Testing Practice Test

CBT Scoring Models and Reporting 2