Protocol: Strategy instruction for improving short- and long-term writing performance on secondary and upper-secondary students: A systematic review.

This is the protocol for a Campbell systematic review. The objectives are as follows. This review aims to investigate the effectiveness of all types of teacher-delivered classroom-based strategy instruction aimed at students in the general population (all students) including struggling students (with or at-risk of academic difficulties) in ages 12-19 for increasing writing performance. The majority of previous reviews scoped all outcomes presented in the primary studies. This review will solely focus on covering three most common outcomes: story quality, story elements and word count/length.