TY JOUR TI IN-HOUSE TRAINING OF TEACHERS FOR JOINT PEDAGOGICAL DIAGNOSTICS OF STUDENT SELF-DETERMINATION KW pedagogical diagnostics KW joint pedagogical diagnostics KW in-house training of teachers for joint diagnostics KW formative diagnostics KW pedagogical support KW student self-determination KW pedagogical reflection KW formative diagnostics center JO Bulletin of Nizhnevartovsk State University AU Gutnik, I.Y. PY 2026 IS 0 PB Nizhnevartovsk State University