You check whether the target is valid before applying the Increase Attribute spell. What it means is that you need to include any other augmentations first, eg, Strength 1 + Muscle Augmentation 2 is 1(3), so you need at least force 3. It's a bit confusing the way it's phrased: the (augmented) sometimes throws people off. Note the steps: first, the Force must equal or exceed the (augmented) value, and then you add hits.