From: A meta-analysis on educational technology in English language teaching
Ranks | ||
---|---|---|
Type of instrument | N | Mean rank |
Questionnaire | 37 | 31.23 |
Interview | 3 | 23.67 |
Observations | 2 | 39.50 |
Interview, observation | 2 | 28.25 |
Observation, questionnaire | 2 | 40.50 |
Questionnaire, tests | 14 | 27.64 |
Total | 60 | Â |
Test statisticsa,b | ||
 | P value |  |
Chi-square | 2.138 | Â |
df | 5 | Â |
Asymp. sig. | .830 | Â |