Psychologists use a systematic method in research in order to eliminate subjectivity and allow for consistency across studies. This is to ensure that data is tested and recorded in the most objective way possible as well as ensure that psychologists are defining and measuring psychological concepts and behaviors in the same way.
I believe the correct answer from the choices listed above is option A. Stretching that uses neuromuscular reflexes to gain further stretching of the muscle is called PNF stretching. PNF stands for <span>Proprioceptive Neuromuscular Facilitation. Hope this helps. Have a nice day.</span>
