| 434 / | HD | EDUCATION AND DEMONSTRATION |
| 322 | DF | QUESTION OR PROBLEM ELICITING RESPONSE {8} |
| 353 | | .~ Grading of response form {5} |
| 354 | DF | .~.~> Comparison of response form with standard answer form {3} |
| 358 | DF | .~.~> Light detector sensing response |
| 359 | DF | .~.~> Electrical means sensing conductive mark representing response |
| 360 | DF | .~.~> Means sensing aperture representing response |
| 361 | DF | .~.~> Means perforating response form at correct answer location |