NCIDQ Exam Scoring Information

Scoring IDFX & IDPX Sections

The two multiple-choice sections (IDFX and IDPX) are scored by computer. Scores are reported on a scale ranging from 200 (0 correct) to 800 (all correct), with the passing point anchored at 500. CIDQ prepares new versions of the exam regularly and uses statistical equating procedures to ensure that all versions are equal in difficulty.

Scoring THE PRAC

Twice a year, the CIDQ Board assembles groups of volunteer grading coordinators and graders to score the practicum exams. All graders are interior design professionals who  complete a rigorous training program before each grading session. The training process includes specific criteria that all graders must understand and comply with, and the Board monitors graders' performance to make sure they are meeting the standards.

CIDQ allows the graders to use some professional judgment when scoring exams. Each of the seven exercises receives its own score. The graders are trained to look at the entire solution to see if you have demonstrated competence in the area being tested. This means you can still pass if your overall solution demonstrates the required knowledge, even if you miss a requirement or make a minor error. For example, putting one door swing in the wrong direction in an exercise probably won't fail you if you've shown an overall understanding of other life safety codes such as corridor length, barrier-free egress, etc. However, having all of the doors swinging in the wrong direction in an exercise indicates a lack of knowledge of life safety codes and would likely fail.

Similarly, if you have correctly shown and scaled the majority of the required spaces but makes a minor error on one, that single error wouldn't be enough to fail you.

Each part of the test is scored separately by at least two independent graders who do not know the other grader’s score. Graders specialize in Part A, Part B or Part C of the exam, so that a total of six graders score each candidate’s examination (two graders for Part A, two other graders for Part B and two additional graders for Part C). If two graders disagree on whether a solution is passing or failing, a grading coordinator will resolve the difference by providing a third score.

Candidates record only their control number on their drawing sheets and envelope of materials. This control number ensures candidates’ anonymity and eliminates any bias that could occur if a grader recognizes a candidate. For the same reason, graders record only their grader numbers on the score sheets. Once the score sheets are recorded, the graders can be identified by grader number to statistically evaluate their performance.

All CIDQ grading processes are developed and maintained to ensure the exam is fair, valid and reliable.