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61. Answers will vary. Probably the best known of the need-based theories, the hierarchy of needs model proposed by
Abraham Maslow specifies five levels of needs that are capable of motivating behavior: physiological, security, social,
esteem, and self-actualization. The lowest level of needs, labeled physiological needs, includes such things as the need for
food or water. The next level of needs, security needs, includes anything involving a safe and secure environment. This is
followed by social needs, which include the need to have meaningful interactions and relationships with others. Next
come esteem needs, which include the need to have a positive view of oneself, and finally self-actualization needs, or the
need to reach one’s personal potential. According to the model, only one level of need is capable of motivating behavior at
any given time. This level of need is said to be prepotent. Thus, if we are truly starving (rather than just in need of a
snack), we will not worry about shelter or other people until we get something to eat. See 13-2: Motivation and Needs
62. Answers will vary. Although rewards and punishment are most effective when they are administered following every
behavior (also referred to as continuous reinforcement), they can still work if they are administered at some times but not
others—that is, by partial reinforcement. Specifically, the rewards are administered on some schedule that dictates when
the reward is and is not administered. Interval schedules reinforce behavior as a function of the passage of time. A
schedule in which someone is rewarded every 10 minutes as long as they exhibit a desired behavior is an interval
schedule. A ratio schedule reinforces behavior as a function of how many times it occurs. For example, rewarding
someone every fifth time a desired behavior occurs would be an example of a ratio schedule. But in addition, the ratio or
the interval can either be fixed or variable; the number of times the behavior must be displayed or the amount of time that
must pass before a reward is given can be constant over time or it can change. See 13-3: Process Theories of Motivation
63. Answers will vary. Reinforcement theory is probably the most basic process theory. Reinforcement theory, usually
associated with B. F. Skinner, proposes that all behavior is a function of its consequences. The model has three
components: stimulus, response, and outcomes.
• The stimulus is something in the environment that cues us about a behavior. A bulletin board might advertise a
soft drink brand, and this stimulus might remind us we are thirsty and want to buy the beverage.
• The response is the behavior that we exhibit in reaction to the stimulus. In this case, it might involve going into a
store and buying the soft drink.
• The outcomes refer to the consequences that follow the response. So once we put a dollar in the machine, several
things might happen: The machine might reject the dollar and send it back out, the machine might take the dollar
and deposit a soft drink, or the machine might take the dollar and keep it without depositing the beverage.