Psychology 2990A/B Lecture Notes - Lecture 8: Graphical User Interface, Engineering Psychology, Fax

88 views4 pages
November 22, 2016
Lecture 8 Engineering Psychology
Prologue: Names and Definitions
A. Other common names for the field:
Human factors
Human factors engineering
Human engineering
Ergonomics
Engineering psychology
B. Engineering Psychology: is the science of:
(a) Designing machines for human use and
(b) Determining appropriate behs for the efficient operation of machines
Machine: is broadly defined from a fax machine to a nuclear plant
Highlights the two goals that led to development of the field:
1. Fitting the machine to the user
2. Fitting the user to the machine
Part 1: Historical Development
A. Design the machine and ignore the user:
This is not a very effective approach.
Eg: World War 2 - Design of Army tanks didn’t consider the user
o Too much noise so it interfered with communication for the user
o Poor visibility directly in front of the tank: tank was designed to fire missiles
o Seating positions caused back and neck injuries
More damage to operators than enemy
Altitude displays in airplanes tells the pilot how far the plane is from the ground
o Display was too complex (took 7 sec to read the display misread the display 12% of the time)
o Display has a clock with 3 hands. Eg: short hand points to 1; long hand points to 7
pilot confuses whether it shows 700 feet or 10,700 feet.
B. Design the machine and then “fit” user to the machine. Two approaches:
1. Design the machine then Select people who fit the machine. Eg:
If strength is required, select strong users
If intelligence required, select intelligent users
This is similar to how industrial psych began (select the right person for the job)
Problem: not always possible to find people who “fit” the machine. Example:
o Women in WW2 weapons factories were NOT very productive. Why?
o Because women are NOT smart enough to use the machine? NO
o The reason: machines designed for men women didn’t “fit” the machines – not tall
enough to use the machines (but no men to use them b/c they were off to the war)
2. Design the machine then Train people to use the machine. Eg:
Give pilots more training with altitude displays
“Time and motion” studies: trained workers to move more efficiently when using machines
(eliminate unnecessary movement)
Problems: training was time consuming and expensive to provide
o Machines were becoming so complex that no amount of training would be effective
(they exceeded human capabilities to operate them) there are only so much things
you can do in 2 sec, so training the users more wouldn’t work.
Then engineering psychologists suggest a 3rd approach
Unlock document

This preview shows page 1 of the document.
Unlock all 4 pages and 3 million more documents.

Already have an account? Log in

Document Summary

November 22, 2016: other common names for the field: Engineering psychology: engineering psychology: is the science of: (a) designing machines for human use and (b) determining appropriate behs for the efficient operation of machines. Machine: is broadly defined from a fax machine to a nuclear plant. Highlights the two goals that led to development of the field: fitting the machine to the user, fitting the user to the machine. Part 1: historical development: design the machine and ignore the user: This is not a very effective approach. Eg: short hand points to 1; long hand points to 7 pilot confuses whether it shows 700 feet or 10,700 feet: design the machine and then fit user to the machine. Two approaches: design the machine then select people who fit the machine. This is similar to how industrial psych began (select the right person for the job) Problem: not always possible to find people who fit the machine.

Get access

Grade+
$10 USD/m
Billed $120 USD annually
Homework Help
Class Notes
Textbook Notes
40 Verified Answers
Study Guides
Booster Classes
Class+
$8 USD/m
Billed $96 USD annually
Homework Help
Class Notes
Textbook Notes
30 Verified Answers
Study Guides
Booster Classes