Intensity and content of private tutoring lessons during German secondary schooling: effects on students’ grades and test achievement - Guill, Karin; Ömeroğulları, Melike; Köller, Olaf (European journal of psychology of education, 2022)
Keywords: Academic Achievement; Achievement tests; Active learning; Cognitive Structures; Correlation; Course Content; Education; Educational Policy; Educational Psychology; Evidence; Extracurricular activities; Foreign Countries; Grade 8; Grade Repetition; Grades (Scholastic); Hypotheses; Incidence; Instructional Materials; Learning Motivation; Learning Strategies; Motivation; Parent Counseling; Pedagogic Psychology; Prior Learning; Private Education; Program Effectiveness; Secondary School Students; Student Characteristics; Students; Test Results; Time on Task; Tutoring; Tutors; Germany; South Korea; Learning time; Shadow education; Private tutoring; Lesson content; Secondary school