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Interservice
Procedures for Instructional Systems Development :
Acronyms and Glossary (continued)
by Robert K. Branson, Gail T. Rayner and J. Lamarr Cox
GLOSSARY (continued...)
N
NARRATION: Is the voice overheard on an audiovisual program.
NARRATOR: Is the person whose voice is heard describing or commenting upon the
content of a film, television program, etc.
NUMERICAL SCALE: Measurement device which associates verbal descriptions
of social objects with numbers and requires students to indicate
their attitudes by marking the appropriate number.
O
OBSERVATION INTERVIEW: Job holder is observed in the job environment performing
all or a substantial part of the job; the job holder performs the job while the
analyst ask questions.
OFF-LINE: Refers to any activity which does not take place as part of the
regular production process.
OVER LEARNING: Refers to the continual practice on a learning
task by a person who has correctly performed the task.
continued...
Acronyms and Glossary - Page 16 of 24  
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