- (A) Evaluate the effects of an unknown, uncontrolled set of experiences is a characteristic of aptitude tests. These tests are designed to assess an individual's potential to perform in certain areas without being influenced by past experiences or training. They measure inherent abilities and potential for future learning or achievement.
- (B) Rely heavily on content validation procedure is more characteristic of achievement tests, which focus on measuring acquired knowledge or skills rather than evaluating the potential to succeed in future tasks.
- (C) Evaluate the potential to profit from training is another characteristic of aptitude tests. These tests are often used to predict how well a person will perform in specific areas of training, helping to gauge their capacity for learning and success in a particular field.
- (D) Evaluate the outcome of training is characteristic of achievement tests rather than aptitude tests. Achievement tests assess what a person has already learned, not their potential to succeed in future learning.
Thus, the correct answer is:
\[
\boxed{A), C)}
\]