Tacita is interested in how teachers' classroom management practices change over time. She conducts observations of eight teachers' classrooms over the course of five years. She interviews the teachers and follows up with counts of referral data, disciplinary notes in children's files, and number of notes home per teacher per year. Tacita's design can best be described as a ________ mixed methods design.
◦ explanatory sequential
◦ convergent parallel
◦ social justice
◦ exploratory sequential