There are four types of validity that affect the rigor of a quantitative study. Which type of validity does a researcher address in choosing to use a true experimental design

Read case #5 - "targeting target" (on pages 77-78 of your textbook), then answer the following questions: do you think it was ethical for authorities to use one of the high-ranking members to trap other gang members? why or why not? how would you approach the target situation? use the internet to research and find the best practices to protect from identity theft.

How has the elimination of trade barriers affected the movement of goods among member countries of the european union? a. member countries are able to produce all the goods they need. b. goods can move freely among member countries. c. member countries no longer need to trade with countries outside the eu. d. larger countries are able to import more goods than smaller ones.

How did dynasties end and how did new ones start?