You are analyzing data that has been collected in annual waves for the past twenty years. Which of the following might be problematic in this type of analysis?
a. many similar questions were asked during each of these waves, and the wording is consistent
b. for the entire twenty years, the data was collected by personal interviews
c. the definitions of some key items have changed over time within the culture
d. using variables that are operationalized consistently over time
Question 2
Being able to benefit from the work of topflight professionals and esteemed academics is an advantage of using:
a. secondary data
b. published statistics
c. nonpublic agency data
d. new data collected by agency staff
Recognizing data clusters
Sound Waves
The proportion of obese and extremely obese adults in the United States has increased over the past
Annual Federal Deficit (or Surplus), 1992–2016
Jamal plans to retire in 17 years. He is saving $2000 every start of the month in a retirement ...
Earth 150 Million Years Ago