In night shift ICU registered nurses (P), how effective is a 30-minute nap (I) compared to no nap (C), in decreasing medication administration errors (O) over a 6-month period (T)

In night shift ICU registered nurses (P), how effective is a 30-minute nap (I) compared to no nap (C), in decreasing medication administration errors (O) over a 6-month period (T)

In night shift ICU registered nurses (P), how effective is a 30-minute nap (I) compared to no nap (C), in decreasing medication administration errors (O) over a 6-month period (T)