Final answer:
Employee motivation is likely to decrease when they don't value the outcome of their efforts or when they don't believe they can achieve the desired outcomes, according to answers a and d. These scenarios suggest a lack of perceived value or self-efficacy, both of which are crucial for maintaining motivation.
Step-by-step explanation:
Conditions that may lead to lower employee motivation include scenarios where employees believe they can perform but either do not value the outcome or do not believe the outcome will be forthcoming. Additionally, employees may be demotivated if they believe they cannot perform well enough to achieve positive outcomes. In each of these instances, the employees' motivation is generally diminished due to a disconnect between effort, reward and self-efficacy.
Answers a and d from the multiple selection are correct, where 'a' states they believe that they can perform but do not value the outcome, and 'd' states they believe that they can't perform well enough to achieve the positive outcomes. Both scenarios can result in a lack of motivation. Scenarios b and c relate to employees who value the outcome or feel they will not receive the outcome, which could increase or decrease motivation, respectively, but are not directly indicative of reduced motivation like scenarios a and d are.