A researcher wants to do a web-based survey of college students to collect information about their sexual behavior and drug use. Direct identifiers will not be collected; however, IP addresses may be present in the data set. Risk of harm should be evaluated by:both magnitude and probability of harm
both magnitude and probability of good

Both the magnitude( severity ) and the probability (or likelihood ) of harm  

Explanation:

A web survey is called an internet survey that is used to collect information about the subjects or collect the data through the internet. In this process, the researcher sent a questionnaire to the respondent on the internet.

Through the internet, they can collect data over the world. The respondent can be sent their respondent through the internet, mails, website, and social media.  

This is the best way to collect information at a big level.

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