The traditional NCLEX Multiple Response Select all the Apply (SATA) items are scored using the +/- scoring method, which allows partial score of items with multiple points to evaluate partial understanding.
Previously, these types of items allowed only for scores as either 'all correct' or 'all incorrect'. Samples of NCLEX items can be found in the Sample Pack.
Please see, What are the current scoring models? for more information on the scoring of different item types.