Social and cultural changes have brought about more , which some argue has weakened marriage ties; however, researchers suggest that the relationships that do survive are emotionally stronger.

individualism                                                                              

Explanation:

In sociology, individualism is described as a phenomenon that holds on a perspective that an individual who is taking part in a specific society generally attempts to learn and identify or discover his or her personal interests, in the absence of any presumed following of various interests related to a societal structure. However, an individualistic individual doesn't require an egoist.

The correct answer to the question above is individualism.

is this even a question? ? : /