Based on the recent completion of questionnaire in regards to Examining Instagram Influencer trustworthiness, attractiveness and Instagram activities influence towards consumer purchase decision making, there are few criticisms can be made.
First, the questionnaire provided is too lengthy. This plays a crucial role in the answer given by your respondent can be invalid. For example, one requires 5 to 10 minutes of his/her time to answer this questionnaire, but going through the first 10 questions, there are still plenty of questions behind that requires some reading. In order to finish it fast, he/she will not bother to read it anymore and just simply answer the questions, which can lead to the questionnaire being invalid.
Second, this questionnaire is dedicated to those who use Instagram, but the results obtain can be invalid because of choosing a sample size from a population that involve both Instagram users and non-users. For example, based on the 300 collected questionnaire, there maybe around 10%-15% might not be usable.
In conclusion, not to say that this questionnaire is not usable, but there are some ammendment can be made to make the questionnaire more respondent friendly.
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