Identify the type of observational study (cross-sectional, retrospective, or prospective) described below. A research company uses a device to record the viewing habits of about 10 comma 000 households, and the data collected today will be used to determinenbspthe proportion of households tuned to a particular educational program. Which type of observational study is described in the problem statement? A cross dash sectional study A retrospective study A prospective study

It is a study that indicates to look in data of a population at a specific point of time. The population is selected based on a specific interest area or a variable of interest. Theses study are often used in developmental psychology but these methods also utilize in another area of the population. These studies are also called observational studies or descriptive studies. Theses studies are not relational or causal. We can not use these studies to determine the cause of something, like a disease. This type of study is used to describe the characteristics of the population rather than the cause and effect of the population. These type of study takes place at a single point in time. Even it does not involve manipulating variables.