Это затрудняет педагогическую оценк

Это затрудняет педагогическую оценку его уровня знаний, умений и способности к обучению.

Results (English) 1:

This makes it difficult to assess its level of pedagogical knowledge, skills, and capacity to learn.

Results (English) 2:

This makes it difficult to assess its level of pedagogical knowledge, skills and ability to learn.

Results (English) 3:

This makes it difficult to sustain an evaluation of the level of knowledge, skills and ability to train.