Descriptor
| Communications | 1 |
| Educational Media | 1 |
| Media Research | 1 |
| Program Effectiveness | 1 |
| Program Evaluation | 1 |
| Research Design | 1 |
| Research Methodology | 1 |
| Research Problems | 1 |
| Validity | 1 |
Author
| Clark, Richard E. | 1 |
| Salomon, Gavriel | 1 |
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Peer reviewedSalomon, Gavriel; Clark, Richard E. – Review of Educational Research, 1977
The major theme is that better and more productive studies could emerge if media research would move out of its traditional either-internal- or-external validity conflict. (Author/MV)
Descriptors: Communications, Educational Media, Media Research, Program Effectiveness
