My suggestions:
- Transform the text in the questions into images.
- Make those images impossible to OCR (use some special characters/fonts).
- (with permission) Record the screen.
- (with permission) Record the camera.
- It has such a format that it focuses on answering many questions in a short time so that it focuses more on instincts and less on long-time judgment.
- (optional) Make the test short – 5 to 10 minutes should suffice.
- Automatically adjust the level of the next question based on the previous question.
- (debatable) Make the test impossible to return to the previous question.
- (debatable) Give the results of the test quickly.
- Don’t use a multiple-choice test. Instead, make the person type the answer.
- Have a large database of questions.
- (debatable) Tell the persons to speak while taking the test, justifying why they chose an answer.
