Job Enrichment

1
Job Enrichment

• Job enrichment and mental workload in
  Computer-based workImplications for adaptive job
  design
• John R. Cook, Gavriel Salvendy
• International Journal of Industrial Ergonomics 24
  (1999) 1323

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Job Enrichment

• Making jobs more satisfying by increasing the
  skill variety, task identity, significance of the
  task, autonomy and feedback from the work itself
• Empowers employees to assume more responsibility
  and accountability

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During the 50's and 60's

• Fredrick Herzberg studied on worker's performance
  
• Hygiene Theory

4
During 1970s

• Hackman and Oldham
• Developed Job Characteristics Model
• skill variety
• task identity
• task significance
• autonomy
• job feedback

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Skill variety

• The degree to which a job requires a variety of
  different skills to be completed

Task identity

• The degree to which the job requires completion
  of a number of whole, identifiable pieces of work

6
Task significance

• The extent to which a job has a meaningful impact
  on other jobs in the same workplace

Autonomy

• The limit to which a job provides substantial
  freedom, independence and discretion

7
Job Feedback

• The degree to which carrying out work activities
  produces direct and clear information about the
  performance of an individual

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Aim of the Study

• Investigating a possible interrelation between
  mental workload and job enrichment with job
  satisfaction.

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Hypothesis

• A positive correlation exists between job
  enrichment and mental workload

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Experiment

• Laboratory-based experiment
• Simulated computerized university admissions
  system
• 66 University student

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Experiment Environment

• The system simulated real world
• Relevant to the university environment
• Allows different work configurations
• Allows interface design changes to alter mental
  workload

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Task Performed

• Inspection of an application form on the computer
  monitor and deciding whether the all information
  is properly entered

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Job Enrichment Manipulations

• Accomplished through changes in the five core job
  dimensions of the job characteristics model

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Mental Workload Levels

• Artificially manipulated by changing interface
  operations and task difficulty while attempting
  to hold job enrichment levels constant

15
Descriptive Statistics
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Evaluation

• Examining motivating potential scores (MPS) for
  each of the six experimental treatment conditions

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Results

• A significant positive correlation between mental
  workload and job enrichment was present (r"0.26,
  p(0.03)
• Job enrichment and job satisfaction were
  significantly correlated (r"0.52, p(0.001)