Which of the following authors stated that teachers who attend in-service training perform effectively in their work about knowledge of the subject, classroom management, teaching method, and evaluation of students?

The correct answer is A. Billing and Ekpoh (2016).

This statement aligns with the research conducted by Billing and Ekpoh, which indicates that teachers who undergo in-service training are better equipped with knowledge of their subject matter, classroom management skills, teaching methods, and evaluation techniques. In-service training enhances teachers’ effectiveness by providing them with updated strategies and practices essential for student success.

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