[Solution]Large Surveys

Many people can be included. If given to a random sample of the population, a survey’s results can be generalized to the population. Large surveys…

Many people can be included. If given to a random sample of the population, a survey’s results can be generalized to the population.
Large surveys are expensive and time-consuming63. Although much information is gathered, this information is relatively superficial.
Experiments If random assignment is used, experiments provide fairly convincing data on cause and effect.
Because experiments do not involve random samples of the population and most often involve college students, their results cannot readily be generalized to the population.
Observation (field research)
Observational studies may provide rich, detailed information about the people who are observed.
Because observation studies do not involve random samples of the population, their results cannot readily be generalized to the population.
Existing data
Because existing data have already been gathered, the researcher does not have to spend the time and money to gather data.
The data set that is being analyzed may not contain data on all the variables in which a sociologist is interested or may contain data on variables that are not measured in ways the sociologist prefers.

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