Recently, ruth has difficulty lifting her feet to climb steps. sometimes her hands tremble when she's drinking her afternoon cup of tea. which neurocognitive disorder is she likely suffering from

the principles and empirical processes of discovery and demonstration considered characteristic of or necessary for scientific investigation, generally involving the observation of phenomena, the formulation of a hypothesis concerning the phenomena, experimentation to test the hypothesis, and development of a conclusion that confirms, rejects, or modifies the hypothesis.