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Date of survey |
: |
December 5 to 10, 2012 |
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Survey method |
: |
Telephone survey conducted by telephone interviewers |
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Target population |
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Cantonese speaking HK citizens of age 18 or above who are parents |
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Sampling method |
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Telephone numbers were selected randomly from residential telephone directories and mixed with additional numbers generated by the computer. If more than one eligible subject had been available, the one who had his/her birthday next was selected. |
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Sample size |
: |
515 successful cases |
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Effective response rate |
: |
69.2% |
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Std. sampling error |
: |
At 95% confidence level, the maximum sampling error of all percentages should be no more than +/-4.4 percentage points |
