Approved applicants receive access to an interactive tutorial web site that provides: instruction in the SLLA scoring process, including the general principles of holistic scoring; specific SLLA scoring criteria; guidelines for applying the scoring criteria to individual responses; and the use of topic-specific reference materials. hold a certification/license and at least two years recent or current experience as a principal, vice principal, assistant principal, superintendent, assistant superintendent or deputy superintendent or teach graduate level courses in an accredited educational leadership program.