Are there anyways to alter the research question to find variables at all levels of measurement below (nominal, ordinal, interval/ratio)?

Research Question

Do newborn infants in the hospital setting diagnosed neonatal abstinence syndrome (NAS), have lower Finnegan scores if the mother breastfeeds or provides expressed breast milk on a regular basis as compared to only receiving formula?

A Nonparametric Plan

1. identify independent and dependent variables with a specific level of measurement (Nominal or Ordinal)
2. their null hypothesis & research hypothesis
3. the statistical analyses with rationale

A Parametric Plan

1. independent and dependent variables with a specific level of measurement (Interval/Ratio)
2. their null hypothesis & research hypothesis
3. the statistical analyses with rationale