Penn State is offering for the first time stackable credentials that can be used to earn master’s degrees in engineering, data analytics, information science, artificial intelligence, human resources and psychology. The stackable credentials at Penn State are being offered through 27 graduate-level certificates that can be completed online, through Penn State World Campus. To earn a stackable credential, a student will take courses in sequence to complete a graduate-level certificate of either nine or 12 credits. Some certificates can be completed in a year or less.