Configuration of the photoelectric effect contents in textbooks(pages).
| Textbooks | A | B | C | D | E | F | Sum | Mean | |
|---|---|---|---|---|---|---|---|---|---|
| Contents | |||||||||
| a. Discovery | 0.25 | 0.4 | 0.1 | 0.25 | - | 0.1 | 1.1 | 0.31 | |
| b. Definition | 0.1 | 0.1 | 0.15 | - | 0.1 | 0.05 | 0.5 | 0.14 | |
| c. Experiment | 0.2 | 0.25 | 0.3 | 0.25 | 0.5 | 0.25 | 1.75 | 0.50 | |
| d. Phenomenon | 0.2 | 0.45 | 1 | 0.2 | 0.6 | 0.8 | 3.25 | 0.93 | |
| e. Contradiction | 0.25 | - | - | - | 0.4 | 0.8 | 1.45 | 0.41 | |
| f. Principle | 1.25 | 1 | 0.35 | 1.5 | 0.95 | 2.7 | 7.75 | 2.21 | |
| g. Problem | 0.4 | 1.4 | 0.55 | 0.6 | 0.6 | 0.7 | 4.25 | 1.21 | |
| h. Application | - | 0.4 | 0.05 | - | - | 1 | 1.45 | 0.41 | |
| i. Significance | 0.15 | - | - | - | 0.25 | 0.1 | 0.5 | 0.14 | |
| Sum | 2.8 | 4 | 2.5 | 2.8 | 3.4 | 6.5 | |||