'subjective impressions' is correct and usable in written English.
It is an expression used to describe personal thoughts, beliefs, or feelings about someone or something which are based on their own experience rather than on facts. For example: "My subjective impression is that the new restaurant has really improved in the past year."
We finally ask the subjects to give his subjective impressions on the possible improvement linked to the training procedure.
Of course, these are simply subjective impressions.
Often, he's found, people end up with a disconnect between their subjective impressions and the hard data.
Once the flavorist has "recorded" his subjective impressions of a fragrance, an algorithm produces an approximate molecular formula for the corresponding flavor.
The scientific world has largely written off Mr. Dreyfus as a well-intentioned oddball prone to confusing subjective impressions with scientific evidence.
De Quincey is a special case, since he experienced subjective impressions as though they were real and wrote about them as though their reality could be conveyed, in all its Technicolor wonder and horror.
What I didn't know at the time is that there's no clinical test for it: doctors make diagnoses based on subjective impressions from a series of interviews and questionnaires.
Such tests enable administrators to directly measure results, without using more subjective criteria that often involve a preference for a particular teaching methodology, or, worse, the subjective impressions of administrators who may have an issue with a particular teacher.
The trick is that the observation is done automatically, and does not rely on the subjective impressions of tired and bored security guards.When confronted with such stimuli, someone who is unfamiliar with them will merely be bemused and ignore them.
In room acoustics, many objective parameters to quantify subjective impressions have been introduced.
Until recently, these questions relied largely on the subjective impressions of urban theorists.
