Kevin, a recent graduate with a degree in construction management, just landed his first job as a field engineer with a company that provides maintenance and repair for oil and chemical companies. During his first week on the job, his enthusiasm grew after talking to other employees. Although he would be traveling to many job sites during the first five years, many of his new colleagues remarked on the opportunities for growth and promotion and added responsibilities if he persevered with this company. If Herzberg were ranking the job factors that provide satisfaction for this young graduate, he would refer to these as