Psychologists use the scientific method to conduct their research. The scientific method is a standardized way of making observations, gathering data, forming theories, testing predictions, and interpreting results. Researchers make observations in order to describe and measure behavior.
Choosing a song that has recently been made is not a typical criterion for a good song to teach preschool children. This is because the type of songs that are used to teach them, are songs that have always been popular, whether they are from a known or unknown source, so they go through generations and teach the children traditions and knowledge that is part of the education system.
As Andrew can choose any position that he likes, the best thing for him to do would be to choose either the first or the last position for the interview. This is because this would give him a slight advantage over other competitors. The interviewer is more likely to clearly remember the first and the last interviewee. Therefore, Andrew would have the chance of leaving a more indelible mark on the mind of the interviewer.