You can combine a metric X with a dimension Y in Google Analytics

  1. If X and Y have the same scope
  2. If X and Y have been precalculated together in an aggregate table
  3. If X and Y are in the same channel grouping
  4. If X and Y have the same campaign
  5. as long as sampling is not required

Correct answer is:

  • A) If X and Y have the same scope

Explanation: Not every metric can be combined with every dimension. Each dimension and metric has a scope: user-level, session-level, or hit-level. In most cases, it only makes sense to combine dimensions and metrics that share the same scope. For example, Sessions is a session-based metric so it can only be used with session-level dimensions like Source or City. It would not be logical to combine Sessions with a hit-level dimension like Page.

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