Risk of response bias e.g. saying yes to everything
The score for all participants on each question is only nominal data so only the mode can be calculated - limited analysis
Can force participants into an answer which isn't true to them
Lack of reason for their answer
Open question
Provides qualitative data, as you allow the participant to respond however they want and it can be rich in detail
Open question strength
They can produce qualitative data, giving participants the opportunity to fully express their opinions, thus increasing validity
All info is analysed so information is not lost by averaging answers - increasing validity
Open question weakness
Answers may be subjective and open to interpretation, leading to bias and issues in validity
Time-consuming for the researcher to analyse all responses
Responses may not be relevant to research
Findings are based on individuals so may lack generalisability
Rating scales
This type of question asks the individual a question and then they must highlight on a numerical scale what they feel best reflects their view
Rating scale strength
Gives an idea of how strongly the participant feels
Gives quantitative data that is easy to compare
Rating scale weaknesses
People tend to go to the middle of the scale so the response doesn't look too extreme
Doesn't give a reason for the answer
Could be interpreted in different ways
Structured interview
Predetermined questions, no other questions are asked apart from the ones planned
Structured interviews strengths
Less likely for the interviewer to influence the answer
Easier to gather quantitative data, making it easier to analyse
Structured interviews weaknesses
The nature of the interview is very artificial and respondent may not feel as though they can answer the questions.
Unstructured interview
A topic of discussion is planned, but no questions are decided in advance; they tend to be open questions
Unstructured interview strengths
More friendly and sociable so the respondent may feel that they can answer with more depth and ease
Unstructured interview weaknesses
Due to broader answers the data may be difficult to analyse and compare
Takes up more time to do
Interview
A series of questions that are given verbally, face-to-face between an interviewer and an interviewee
Interview strengths
Structured interviews are easier to analyse if quantitative
Semi-structured and unstructured interviews enable the researcher to gain detailed info
In face-to-face interviews, the interviewer can respond more flexibly to gain useful, detailed info
Interview weaknesses
Structured interviews are limited by fixed questions and therefore lack validity
Researcher bias can occur and the expectation of the interviewer may alter the way the respondent answers questions.
Questionnaire
A series of questions in a written form
Questionnaire strengths
Easy to administer and can be emailed to participants, making it time and cost-efficient
Participants may be more truthful than in an interview is the answers are personal as they are written down without immediate judgement of someone
Data easy to analyse if quantitative
Questionnaire weaknesses
Response biases - e.g. tending always to say no or always ticking the same box
Limited because unlike unstructured interviews there is less flexibility - if someone has written an answer that you do not understand it can lead to research being misinterpreted
Data relies on questionnaire being returned which is not guaranteed
Semi-structured interview
Some questions are pre-planned before the interview and then others are created at the time of the interview
Semi-structured strengths
Less likely for interviewer to influence the answer
Easier to gather quantitative data making it easier to analyse
Semi-structured weaknesses
Nature of the interview is very artificial and respondent may not feel as though they can answer questions
General strengths of questionnaires and interviews
Can generate quantitative and qualitative data
Structured interviews and questionnaires can be easily repeated to increase external and internal reliability
Structured interviews and questionnaires can be easily assessed for reliability and improved by removing or changing inconsistent items
General weaknesses of questionnaires and interviews
Participants can be affected by biases such as social desirability and leading questions
Only some people are willing to fill out questionnaires or participate in interviews so may not be representative of the population
Validity
Learning questions lower criterion validity due to bias
Social desirability lowers construct validity due to uncontrollable variables
Forced-choice questions lowers concurrent validity as participants might have given a different answer if given the opportunity
Standard response set where participants answer all questions similarly without much thought meaning responses aren't genuine
Social media self-report
Questionnaire form
Asked how long a person spent on social media and how they felt about the king's coronation