Final answer:
Job enrichment is associated with higher employee motivation and satisfaction due to increasing the scope of a job with higher-level tasks and autonomy, while job enlargement simply adds more tasks without these benefits and is not as effective in increasing motivation.
Step-by-step explanation:
Among job enlargement and job enrichment, research indicates that job enrichment tends to be more positively correlated with improved employee motivation and satisfaction. This is because job enrichment often involves increasing the scope of a job by adding tasks that are of a higher level, giving employees more autonomy, and opportunities for personal growth, which enhances their job satisfaction. In contrast, while job enlargement means increasing the number of tasks an employee performs, it can often lead to an increase in workload without necessarily improving the job's intrinsic motivation if not done thoughtfully.
When comparing the two, job enrichment tends to lead to the improvement of employees' quality of work, while simply adding tasks without any associated increase in autonomy or task variety—a key aspect of job enlargement—is not effective in increasing motivation. Job satisfaction can be impacted by many factors, including the work-content factor, role clarity, and a sense of control over one's work, as well as the culture and personality of the worker.