Inquiring Minds want to know Assignment Example | Topics and Well Written Essays - 750 words - 2

Inquiring Minds want to know - Assignment Example The data was further about a single population, readers of publications. Even though many types of longitudinal surveys exist, trend study best identifies the used survey. This survey type identifies a target population from which a sample, at each trial, is selected and analysis conducted at the different times to determine and explain possible difference. The type of study can be conducted over any time gap and may use different participants as well as different researchers (Copper and Schindler, n.d.). Many issues exist to validity and reliability of the applied survey type. Core to the concerns is the flexible scope of trend studies longitudinal surveys that allows for difference in researchers and research participants. Such a difference offers a biased basis for comparing results because of difference in research environments across the research times. The study, for example, sought to determine effectiveness of publication advertising in generating leads and difference in consumers’ response approach to advertisements based on technology changes may offer a biased platform for comparing effectiveness of publication advertising across the considered time points. This means that identified effectiveness of publication advertising in the year 1997 could have been underestimated because of responses by other means other than the considered cards. Availability of free toll lines for customers’ enquiries and availability of web sites from which consumers could make inq uiries and orders, in the year 2007, are examples of changes in the study that undermined reliability and validity of longitudinal survey (The University of Texas, n.d.; Copper and Schindler, n.d.). The survey method is also demanding in terms of resources. It requires time because data collection must consider data from at least two different periods. This further identifies the need for comparison and higher expenses on requirements