Data collection Flashcards
What is the most important step in conducting research?
Data collection
TRUE AND FALSE
Data collection is the most time-consuming and expensive part of research
True
What can data be classified into?
- Primary data
- Secondary data
Primary data
-researcher tries to collect themselves
-data collected for the first time
Secondary data
-data that has already been collected
Which data is considered more valid and why (primary or secondary)?
Primary, because it is data that hasn’t been published or changed before
What are the methods of collecting primary data?
- Observation
- Interview
- Survey & Questionnaire
True and false
Clinical trials and experiments can not be considered as a subtype of observation methods.
False
Clinical trials and experiments can be considered as a subtype of observation methods.
What are two ways of observation in collecting primary data?
- Without letting the person know
- In an artificially created environment
What are the advantages and disadvantages of interviews (primary data)?
AD:
- Allow in-depth and detailed questioning
DIS:
-slow
-expensive
-time-consuming
What are the three types of survey methods?
- Self-administered survey
- Personal interview survey
- Telephone survey
Self-administered survey
Completed by the respondent independently.
Self-administered survey (by mail) AD and DIS
AD:
-wide-spread reach (people and places)
- no direct influence from the researcher
DIS:
-low response rate
-time-consuming (takes weeks for data collection)
- Difficulty of complex survey design
Personal interview survey AD and DIS
AD:
-Direct interview with study participants
-Use when the survey instrument is complex
DIS:
-Interviewers must be hired and trained
-Expensive
-small sample size
-Must have interview consistency (if more than one interviewer)
Telephone survey AD and DIS
AD:
-less expensive than a personal interview
- Direct telephone talk to the respondent
DIS:
-Interviewer should be trained
