• What is the difference between pre-coded and open-ended questions?. The differences between pre-coded and open-coded questions... Open-ended questions Pre-coded or closed questions •Th
Trang 1Welcome to our
presentation
Trang 2Members of our group
• Dang Thi Phuong
• Hoang Thi Mui
• Ma Thi Hanh
• Pham thi Ngoc Yen
• Tran Thi No
Trang 3• What is the difference between pre-coded and open-ended questions?
• What are the principles of coding them?
Trang 4The differences between pre-coded and open-coded questions
Trang 5Open-ended questions Pre-coded or closed
questions
•The interviewer asks a questions
without any prompting of the
range of answers to be expected,
and writes down the respondent
‘s reply word for word
Eg: Asking the respondents to
state any five aspects of the job
that they find very interesting and
challenging in jobs
The respondent is offered a range of answers , or option ,
to choose from
Eg: The researchers might list 10 or 15 aspects that
might seem interesting or challenging in jobs and ask the respondents to rank the first five among these in order
of their preference
Trang 6
•Require “probes”from
the interviewer to
elaborate or continue
the discussion
•Provide the
reseacher with a rich
array of information
•Enable respondent to
give their general
reactions to the
questions
•Help the respondent to make quick decisions to choose among several alternatives before them
•Often provide cruder and less subtle
information
•Have loss of spontaneity and expressiveness
Trang 7•The problem of
open-ended questions is
interview bias
•The coding and
data-entry process is
greatly simplified
•Because the option of expounding on the topic isn’t given to a
respondent, there is no bias toward the articulate
•The coding and data-entry process is complex
Trang 8The principles of coding questions
•Coding involves converting questionaire
answers to numbers
•The coding process is straighforward , with each question being given a column and
each answer a single numeric code in the table.
Trang 9• Pre –coded or closed questions.
Eg: what sort of trip do you use the bus for?
a Going to work
b Going to school /college /university
c Shopping
d Visiting friends/ relatives
e Leisure
For this example a column is reserved for each
answer category because one respondent can give than one answer
In all other questions only one answer is possible, so
only one column is allocated ( examples in the
Trang 10•Open- ended questions
One approach is simply to write down all the answers as they are given by the
respondents
It would propably be useful to group the
answer in some ways
Eg: Answers which are very opposed to the closure of the bus services would be
group together, while those that expressed
Trang 11• Second approach is to group the answers and give them a code
Eg : what is your opinion on the proposed withdrawal
of the No.66 bus service?
•Very opposed to removal of bus service
•Moderately opposed to removal of bus
service
•Not concerned/ in favour
Code 1 Code 2 Code 3