| 
 | 
| Potential obstacles | South Korea M  (SD)
 | USA M (SD)
 |  | 
| 
 | 
| Difficulty controlling what information  students access online | 2.24 (0.87) | 0.92 (0.90) | 16.45** | 
| Lack of technical support | 2.18 (0.93) | 1.58 (1.10) | 6.18** | 
| Lack of support from administrators | 2.17 (0.94) | 0.90 (1.04) | 13.77** | 
| Lack of time during a class period | 2.02 (1.04) | 1.85 (1.06) | 1.80 | 
| Lack of time to integrate technology because of the amount of time required to prepare students for  high stakes testing | 1.98 (1.03) | 1.29 (1.13) | 6.88** | 
| Lack of professional development on how to integrate technology | 1.97 (1.00) | 1.63 (1.08) | 3.54** | 
| Lack of time to prepare for using technology | 1.95 (1.02) | 1.46 (1.10) | 5.01** | 
| Difficulty managing the classroom when  students are working on computers | 1.82 (1.11) | 0.52 (0.77) | 18.06** | 
| Lack of incentives to use technology | 1.74 (1.03) | 1.01 (1.02) | 8.00** | 
| Lack of understanding of copyright issues | 1.66 (0.96) | 0.62 (0.78) | 14.59** | 
| Lack of access to technology | 1.56 (1.04) | 1.73 (1.13) | −1.69 | 
| Not knowing how to evaluate or assess students when they work online | 1.53 (1.02) | 0.93 (0.89) | 7.44** | 
| Lack of time to teach students the basic computer skills needed for more complex tasks | 1.50 (1.03) | 1.35 (1.10) | 1.53 | 
| Not knowing how skilled students are at using technology | 1.49 (1.01) | 0.82 (0.87) | 8.49** | 
| Not knowing how to incorporate technology and still teach content standards | 1.47 (1.06) | 0.89 (0.92) | 6.95** | 
| Lack of understanding of how to integrate technology into literacy instruction | 1.46 (1.06) | 0.83 (0.88) | 7.86** | 
| Considering technology to be unreliable | 1.40 (0.86) | 0.74 (0.82) | 8.96** | 
| Thinking that technology doesn’t fit my beliefs about learning | 1.24 (1.05) | 0.29 (0.63) | 15.70** | 
| Thinking that technology integration isn’t useful | 1.11 (0.99) | 0.17 (0.50) | 18.79** | 
| Internet text seemingly too difficult for students to read | 1.10 (0.89) | 0.87 (0.91) | 2.83** | 
| Not knowing how to use technology | 0.96 (1.00) | 0.65 (0.84) | 4.06** | 
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