Final answer:
The first principle of effective conditioned reinforcement is that the primary reinforcer must be effective, which means it should inherently reinforce behavior by satisfying physiological or biological needs.
Step-by-step explanation:
The first of these principles of effective conditioned reinforcement is that the primary reinforcer needs to be effective, that is, something that will readily reinforce behavior. A primary reinforcer has innate reinforcing qualities such as food, water, shelter, sex, and touch. These do not require learning to be effective and are linked to the satisfaction of physiological and biological needs. In contrast, a secondary reinforcer has no inherent value and only has reinforcing qualities when linked with a primary reinforcer or other intrinsically valuable outcomes, examples include money, gold stars, and praise.