For the first stage of research in depth interviews were employees to generate the ideas, directions and question wording is to be used in the second stage of the research. These interviews could last for up to two or three hours. We feel to obtain or generate better ideas; directions and question wording for the second phase a focus group to study would have yielded the better results. The main problems with in depth interviews are quotation marks the data obtained are difficult to analyze and interpret, and the services of skills psychologists are typically required, quotation marks and quotation marks Skills interviewer's capable of conducting depth interviews are expensive and difficult to find quotation marks (Malhotra 2000). But the time spent collecting data for just one interview was too long, and as a result respondents would have been reluctant to take part in this study. The material required for this research is generally of an exploratory nature and so focus groups would have been more suited. By combining groups of similar age and sex researcher "records the new issues that are rolls and be able to segments of the views more effectively into more specific groups. Also focus groups would have greatly reduced the data collection time and costs.
The in depth interviews were carried out with men, women and teenagers in the metropolitan New York area. We believe that it could be argued that this was not an accurate representation of the entire population. We feel that before the research was conducted information on ABC1's, C2's and DE should have been collected in order to assess whether the information collected was easily transferable to the general population.
Second stage research, survey
The sample size of 1,970 was we believe a sufficient number to provide results which could be transferred to the total population. The method in which they carried out the research, in home interviews, was the best choice