Participants provide info about themselves without interference from the experimenter
EXAMPLE: Questionnaires,interviews,diaries -> response to pre-set questions
STRENGTHS: Participants can be asked about their feelings / cognitions (e.g. thoughts) which is more useful than observing behaviour, can be asked hypothetically (don’t have to set them up & observebehaviour)
WEAKNESSES: Participants may not be willing to disclosethoughts / feelings,socialdesirability bias (may try to give the answers they think researchers are looking for)
Unstructured: (informal)
Casual conversation (build a rapport,natural)
No set questions
Raise topics that they deem relevant
Qualitative Data
STRENGTHS: Detailed / rich info (interviews) , conversational so can discuss sensitive issues
Structured: (formal)
Like a jobinterview
Fixed,predetermined set of questions
Given to ppts in the same order and way
Interviewer stays within their role (social distance from interviewee)
Semi- Structured (everyday life)
No formalised question list
Open-ended questions (allows for discussion rather than Q & A format)
GENERAL STRENGTHS & WEAKNESSES OF INTERVIEWS:
Strengths: Can be used as part of a pilotstudy
Weaknesses: Time-consuming, expensive (training interviewers, analysis of data), ppts must have basiccompetencies e.g. adequate communication skills) to partake (could limit sample size / representativeness)
Interviewer Bias:
Appearance / behaviour of the interviewer may influence respondent’s answers
Can bias / invalidate results
QUESTIONNAIRES:
Face-to face,telephone, by post
Questionnaires can be open ended (flexibility in respondent’s answers), however issues may arise if:
Jargon (subject-specific language) is overused
Leading questions are used
Double- barrelled questions are used
Doublenegatives are used
Closed questions can also be used: (require short answers / choice of answers from given alternatives)
Likert scales (Stronglyagree -> Stronglydisagree, May remove “neutral”)
Rating scales (numerical, find average)
Fixedchoice (multiple choice, tick what you agree with / other)
KEY POINT:
*QUESTIONCHOICE SHOULD AVOID BIAS / AMBIGUITY*
STRENGTHS OF QUESTIONNAIRES
Relatively cheap / quick way to gather a large amount of data
Can be completed privately / anonymously (honest answers)
WEAKNESSES OF QUESTIONNAIRES:
Socialdesirability issues
”Attrition” response return rates are poor (e.g. if sent by post) so cannot generalise
Can be flawed if there are leading questions
Misunderstood questions- no clarification - questionnaire may be completed incorrectly