怎么说criticism或feedback. 批评？好评？
Normally, dictionaries translate "criticize" and "criticism" as "批评". In Chinese, 批评 has a very negative meaning, right?

Is there a Chinese term to describe "positive feedback"? This is when you tell a person what is wrong (or what he/she did wrong) with the intention to help them. When giving "positive criticism," or "positive feedback," (often just "feedback"), we don't want to make the person feel bad. We want to help the person improve, because if that person is unaware of the mistakes, they cannot improve. How would I say something like this in Chinese? I found the term "好评"; is that used?

Question

怎么说criticism或feedback. 批评？ 好评？
Normally, dictionaries translate "criticize" and "criticism" as "批评". In Chinese, 批评 has a very negative meaning, right?

Is there a Chinese term to describe "positive feedback"? This is when you tell a person what is wrong (or what he/she did wrong) with the intention to help them. When giving "positive criticism," or "positive feedback," (often just "feedback"), we don't want to make the person feel bad. We want to help the person improve, because if that person is unaware of the mistakes, they cannot improve. How would I say something like this in Chinese? I found the term "好评"; is that used?

Answer

Normally, dictionaries translate "criticize" and "criticism" as "批评". In Chinese, 批评 has a very negative meaning, right?
Yes, it is a very negative and strong word.

Is there a Chinese term to describe "positive feedback"?
Yes, we have 善意的批评 for positive criticism and 正面的反馈 for "positive feedback".

I found the term "好评"; is that used?
Yes, 好评 is commonly used, but it is not exactly the opposite of criticism. you can 批评 someone, but you can't 好评 someone, 好评 is only referring to something you have done. it is kind of "acclaimed"
His work was critically acclaimed. 他的工作得到好评
His performance won him much praise. 他的表现赢得了很多好评。

Answer

Feedback=反馈

You can say: 我对你的反馈是... (Sounds formal) My feedback to you is... (I'm not sure if it's proper to say "My feedback to you is sth" in English)

I would say: 我对你的建议是... My advice to you is...  Hmm, why you didn't consider using the word  "advice" or "suggestion"? They don't have the "effect" you wanted?

Answer

批评 在中国 has a negative meaning because it makes people feel bad. but when it translate to "批判" , then it's not. we often use 教导 （teach/guidance/instruct  btw, are there some obviously differences among them?）meaning positive criticism.   Another question, isn't positive feedback(正反馈) means it helps in keeping you doing something?like motivation?

Answer

"criticism" 评论

Answer

"constructive criticism" is also commonly used in Chinese. 
constructive criticism=建设性批评