It is a method of gathering data where participants provide information about themselves without interference from the experimenter
What are examples of self-reports?
Questionnaires and Interviews
What is a questionnaire?
A set of questions given in written form, they involve different types of questions such as open or closed questions
What are the strengths of using a closed question?
It provides quantitative data
Easy to analyse and compare
What are the weaknesses of using closed questions?
Responses are limited
They lack depth or detail
What are the strengths of using open questions?
They provide qualitative data
Able to understand their explanation due to the detail
What is a weakness of using open questions?
Difficult to compare results
What is a Likert scale?
A scale used to determine how much a participant agrees with a statement, this is achieved with a scale ranging from strongly agree to strongly disagree
What are the drawbacks of using a Likert scale?
Can be subjective as participants may interpret the scale differently
Introduces social desirability bias as participants are more likely to choose the middle option, which lacks validity
What is response bias?
The way participants answer questions which leads to inaccurate results, for example ticking the same box each time
How do you reduce response bias?
Reverse half of the answers
Phrase the questions both positively and negatively
What are semantic differentials?
Participants place themselves on a line between two extremes, usually two contrasting adjectives, to measure attitude, for example boring and exciting
What are the strengths of questionnaires?
Easy to administer
Used to gain data from a large sample or population
They are time and cost efficient
Closed questions are easy to compare and analyse
Open questions allow for personal perspectives and reasons
What are the weaknesses of questionnaires?
There may be response bias
Participants may interpret questions differently or misunderstand them
Possible responses allocated for closed questions may not represent for the participants true answer
What is an interview?
A series of verbal questions given fact-to-face between an interviewer and an interviewee
What are the three different types of interviews?
Structured interviews
Semi-structured interviews
Unstructured interviews
What is a structured interview?
Has predetermined questions that are asked in the same way and in the same order with each interviewee with no deviations
What are the strengths of a structured interview?
Standardised procedure involved ensures that interviews are easily replicable
Quick and can be completed in the same time for each participant
Useful for ensuring methodological reliability due to standardisation
What are the weaknesses of structured interviews?
Inflexibility of the interview questions means that some key details may missed as new questions cannot be raised during the interview
Only closed questions can be asked, so lacks detail
What is a semi-structured interview?
Have guidelines on which questions to ask and topics to cover, but can deviate and vary with each individual
What are the strengths of a semi-structured interview?
Enables the researcher to gain additional details
Interviewers will cover the specified topics so data can be used for comparison
What are the weaknesses of a semi-structured interview?
Difficult to use qualitative data gained from open or unique questions in statistical tests or when looking for patterns
Researcher bias can occur as the lack of structure could allow for leading questions that may alter responses
What are unstructured interviews?
No questions are pre-determined; all the questions are open and the process itself is more like a guided conversation than a formal interview
What are the strengths of an unstructured interview?
Increased concurrent validity as the interviewer can offer clarification or reword questions when necessary
Flexibility of questions means they can be altered and added according to the responses given
Qualitative data is gained, allowing for highly detailed information
What are the weaknesses of an unstructured interviews?
Interviews must not create bias through leading questions or body language, to avoid this they must be trained which is not cost-effective
Time consuming to interview each participant if the sample is large
Analysing and categorising the data is difficult, making it harder to make conclusions or find significant results
How do you improve validity?
Remove any leading questions or opportunities for socially desirable responses
Add open questions that collect qualitative data
Ensure that the sample is representative and unbiased, achieved using random sampling or using a large sample
Using concurrent validity
How to improve reliability?
Use methods such as split half, researcher asks similar questions, to compare for consistency and reliability
Ensure that procedures are standardised - train interviewers and write detailed instructions for questionnaires to avoid ambiguity
What are some ethical issues?
Informed consent is expected
Any deception must be debriefed afterwards
Questions must not cause harm - it should not be too personal
Confidentiality - meaning no recording of names, so it remains anonymous