Descriptive statistics | |||||||
---|---|---|---|---|---|---|---|
N | Mean | Std. deviation | Minimum | Maximum | Skewness | Kurtosis | |
Listening | 150 | 21.19 | 2.68 | 12 | 25 | −0.48 | 0.39 |
Speaking | 150 | 25.19 | 3.31 | 14 | 30 | −0.44 | −0.06 |
Reading | 150 | 17.03 | 2.47 | 7 | 20 | −0.84 | 0.91 |
Writing | 150 | 17.15 | 2.23 | 10 | 20 | −0.67 | 0.06 |
Vocabulary | 150 | 21.01 | 3.10 | 11 | 25 | −0.64 | 0.09 |
Grammar | 150 | 16.61 | 2.48 | 8 | 20 | −0.67 | 0.32 |
Designing and performing instruction | 150 | 87.78 | 11.92 | 47 | 105 | −0.72 | 0.26 |
Assessment | 150 | 33.33 | 4.84 | 17 | 40 | −0.64 | 0.39 |
Familiarity of students | 150 | 29.23 | 4.03 | 18 | 35 | −0.33 | −0.44 |
Content knowledge | 150 | 20.83 | 3.02 | 15 | 25 | −0.26 | −0.88 |
Classroom management | 150 | 34.52 | 3.93 | 21 | 40 | −0.54 | −0.03 |
Professional development | 150 | 323.87 | 37.14 | 209 | 385 | −0.58 | 0.02 |
Valid N | 150 |