Data for: Educational psychology perspectives on cognitive load and written corrective feedback: enhancing past tense acquisition in L2 learning

Data and analysis script for Rasool, Qian & Chen (2026), “Educational psychology perspectives on cognitive load and written corrective feedback: enhancing past tense acquisition in L2 learning,” Frontiers in Education, 11:1695913 (doi: 10.3389/feduc.2026.1695913), and its corrigendum. Contains anonymised past tense accuracy scores for 180 Pakistani senior high school students in four feedback groups (direct, indirect, metalinguistic, no feedback) at pretest, three treatment sessions, immediate post-test and delayed post-test, plus a Python script that reproduces the reported results.