Statement-I: Motivation can indeed be either positive or negative. Positive motivation involves encouraging individuals through rewards, recognition, or incentives, while negative motivation involves the use of fear, punishment, or consequences to drive behavior.
Statement-II: Motivation is indeed a complex process due to the heterogeneity of individuals in their expectations, perceptions, and reactions. Different individuals may respond differently to the same motivational stimulus due to variations in their personalities, backgrounds, and experiences.
Both statements accurately describe aspects of motivation.