self reporting techniques

• Questionnaires are a set of questions in an online or written form that can be used to assess the dependent variable.
• Interviews are face-to-face set of questions, either in a group or individual setting.
• Open questions may misinterpret the question and provide qualitative data with little comparison.
• Closed questions can analyse data, providing quantitative data and are objective, but lack detail and people may just select random answers.
• 1-5 scale may be subjective and interpretation of the scale might change the answer, leading to social desirability bias.
• Evaluations of questionnaires are quick to distribute, cost effective, but may be biased and hard to analyse open-ended questions.
• Interviews can be structured with a predetermined list of questions, making them easy to compare and replicate, but harder to ask follow-up questions.
• Interviewer bias and social desirability bias are still present in unstructured interviews.