Venting when angry leads to less happiness after the initial catharsis.
In romantic relationships, similar personalities attract, rather than opposites.
The blog Barking up the Wrong Tree also collects psychology experiments of this kind. The posts are often based on single studies, so I don’t know how well-established they are, but it’s often possible to reverse the result and invent a plausible explanation. Some examples:
Spending money on other people makes you happier than spending it on yourself
Heavy TV-watchers are less happy when given more channel options (which itself is an example of the general finding that having a large number of choices reduces happiness)
Chronically ill patients may be less happier if they hope for a cure
Hi.
I’ve been lurking here and on OB for a couple of years. As other people have said, there seems to be a large amount of prerequisite knowledge required to post here. I usually find my own thoughts expressed more clearly by someone else in the comments, so I up-vote rather than just adding noise.