you can't make an Anomaloscope test without using both the turning knobs, reallt not.
I'm almost sure the woman who assisted you during the test was completely unprepared!
the lower know adjusts only the lower semircicle, so how the hell could you make the semircicles look similar?
From wht you said, I suppose you didn't pass the test, did you?
Anyway I'm sure the anomalocope test is conducted by usinng both the knobs, that's fundamental.