調查方法Survey MethodBack


調查方法

紀律部隊民望的調查方法如下：
 

 該等調查自二零一二年六月起一般每六個月進行一次，每次分為兩個階段，首先進行市民最熟悉的紀律部隊提名調查，然後根據提名結果對市民最熟悉的六個香港紀律部隊，連同駐港解放軍進行滿意程度調查。2015年中，民研計劃擴大評分範圍，把九個香港紀律部隊和駐港解放軍全部納入滿意程度調查，省卻提名調查階段，增加調查的參考價值。2017年底，本調查改以滿意度評分為主，在使用五等量尺的問題之中，僅保留問及對香港警務處及駐港解放軍滿意度的問題作長期追蹤參考。
 

 上述所有調查皆屬電話問卷調查，由嚴格督導下的訪員進行訪問。
 

 所有調查的訪問對象皆為十八歲或以上之操粵語的香港市民。
 

 2014年1月中起，電話號碼抽樣方法是先從通訊事務管理局之香港電訊服務號碼計劃獲取已分配予電訊商的電話字頭，然後以隨機方式從中產生號碼。最後，按照電腦撥打及過往調查記錄，剔除無效號碼成為最終樣本。
 

 2014年1月中或之前，電話號碼抽樣方法是從住宅電話簿中首先以隨機方法抽取「種籽」號碼，再以加一減一加二減二的方法產生另一組號碼，然後在混合後再過濾重覆號碼，再以隨機排列方式排次成為最後樣本。
 

 抽取住戶成員的方法是由訪員在成功接觸目標住戶後，用「即將出生日期」的方法由當時在家的成員抽取其中一人進行訪問。



Survey Method

The research design of the popularity surveys of the disciplinary forces in Hong Kong is explained as follows:
 
 

Relevant surveys were conducted once every six months, in two different phases since June 2012. A naming survey of people’s most familiar disciplinary forces in Hong Kong was conducted first, followed by another survey on people’s satisfaction with top 6 most familiar disciplinary forces, as well as the PLA Hong Kong Garrison. In mid-2015, POP expanded the scope of the satisfaction survey to cover all nine disciplinary forces in Hong Kong, plus PLA Hong Kong Garrison, thus doing away with the naming survey while increasing the reference value of the entire survey. In late 2017, the focus of the survey was changed to satisfaction ratings. For the questions that used the 5-point scale, only the two on the satisfaction of the Hong Kong Police Force and the PLA Hong Kong Garrison were kept for the purpose of long term tracking.
 
 

All surveys mentioned are telephone surveys conducted by interviewers under close supervision.
 
 

Target population of these surveys are Cantonese speakers in Hong Kong of age 18 or above.
 
 

Starting from mid-January 2014, telephone numbers are randomly generated using known prefixes assigned to telecommunication services providers under the Numbering Plan provided by the Office of the Communications Authority (OFCA). Invalid numbers are then eliminated according to computer and manual dialing records to produce the final sample.
 
 

Before mid-January 2014, telephone numbers are first selected randomly from telephone directories as seed numbers. Another set of numbers is then generated by using the plus/minus one/two method. Duplicate numbers are then screened out, and the remaining numbers mixed in a random order to become the final sample.
 
 

Upon successful contact being made with a target household, one member of the household is selected among those present using the "next birthday" rule.