Psychological scale is to determine a standard according to the scores of similar people, which is the so-called norm. According to this standard, we can have a more accurate understanding of employees' psychology.
The other is investigation, which has no definite standard and is more used for research and investigation. It does not refer to the psychological distribution of the same kind of people, but only to the psychological distribution of the research object. Therefore, it is of little value for employee screening and the like.
Judging from your description, you should choose psychological scale instead of questionnaire.
Here, I recommend the SCL-90 scale to you. Generally speaking, we use this scale to screen whether employees are mentally healthy or not, and to screen patients in hospitals. It has many dimensions, which can provide employees with psychological and physiological information and whether it is normal or not. It is also the most practical and authoritative psychological scale. It can completely satisfy what you call "see how you react". Read the operation manual carefully before non-professionals understand the operation, and generally they can operate well.
In addition, MMPI (Minnesota Multiphasic Personality Test) can be applied. This scale was developed on the basis of healthy people and unhealthy people, and it is accurate and stable in distinguishing whether employees are normal or not. The disadvantage is that it is difficult for non-professionals to operate.
What the above people said is useless in mental health, but it is good for understanding the character and character of employees. In contrast, as mentioned above, 16PF is more authoritative and scientific than any nine-type personality. However, if there is MMPI, there is no need to use that 16PF. MMPI itself is also a personality scale.
Finally, the test should not be abused, and the purpose should be considered, but the cost should also be considered. Two online assessment websites are provided below:
/group/topic/ 1680774/
The topics of SCL-90 can be found on this website.
/group/topic/ 1493774/
You can find the topic of 16PF on this website.
As for the whole operation manual, hehe, it is generally not easy to get it, and this management is relatively strict.
Good luck, please add points if you are satisfied, hehe.