Characteristics of students in the study sample individual, social and economic characteristics
| Variables | Unit | Standard deviation | Min | Max |
|---|---|---|---|---|
| Age | Year | 9.08 | 19 | 36 |
| Level of education | Grade | 1.01 | 0 | 3 |
| Major | – | 0.5 | 0 | 4 |
| Individual expenses in a month | million tomans | 4.2 | 400,000 | 8,000,000 |
| A person’s income in a month | million tomans | 3.2 | 0 | 10,000,000 |
| High-speed internet access | – | 1.01 | 0 | 4 |
| Access to a laptop or smartphone | – | 1.01 | 0 | 4 |
| Variables | Unit | Standard deviation | Min | Max |
|---|---|---|---|---|
| Age | Year | 9.08 | 19 | 36 |
| Level of education | Grade | 1.01 | 0 | 3 |
| Major | – | 0.5 | 0 | 4 |
| Individual expenses in a month | million tomans | 4.2 | 400,000 | 8,000,000 |
| A person’s income in a month | million tomans | 3.2 | 0 | 10,000,000 |
| High-speed internet access | – | 1.01 | 0 | 4 |
| Access to a laptop or smartphone | – | 1.01 | 0 | 4 |
Source(s): Table by authors
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