What are the differences between 效果 and 效应?

Question

Which of the following sentences is correct, or are both correct? Why?

1. 虽然学校采取了一些措施，但是没有什么效果.

2. 虽然学校采取了一些措施，但是没有什么效应.

Answer 1

效果: result; effect

效应: effect

1.虽然学校采取了一些措施，但是没有什么效果. 2.虽然学校采取了一些措施，但是没有什么效应.

Both 没有效果 and 没有效应 are correct if you want to say "no effect"

When you want to say "result" then you must say "效果"

Example:

"US tax reform has not achieved the expected results" = "美国税改并未达到预期的效果"

"US tax reform has not created the expected effect" = "美国税改并未产生预期的效应"

Since 效果 has meaning other than 'effect' We usually translate 'effect' as 效应

As user 3306356's answer stated: 'the butterfly effect' is translated as 蝴蝶效应 (the butterfly effect) instead of 蝴蝶效果(the butterfly effect/result)

Answer 2

The biggest difference is in the fact that 效应 is, usually, effect, as in: the butterfly effect, the Matthew effect, the Bambi effect or as Wiki explains it:

observable phenomena

Answer 3

虽然学校采取了一些措施，但是没有什么效应. This sentence is wrong.

效果means result, but 效应 emphasize effect and influences.