It is hard to find another theory, anywhere in science, that has such explanatory power.

And as such they have no causal or explanatory power of their own.

There is always room for another model with greater explanatory power.

The explanatory power of birth order extends beyond the family.

The second problem with this view is its explanatory power.

Fama also tested for changes in the model's explanatory power over time.

The number of relevant factors and their explanatory power changed between sub-periods.

The explanatory power of magic should not be underestimated, however.

It's become a broad term, but that does not diminish the explanatory power behind it.