Field experiments tend to have less external validity than laboratory experiments. (True or false?)

Field experiments tend to have less external validity than laboratory experiments.
 
 Indicate whether the statement is true or false

Question 2

Which of the following was a result of the economic crisis that began in 2008?
 a. Iceland seized the United Kingdom's bank funds.
  b. The United States seized Icelandic bank funds.
  c. Iceland was not at all affected by this crisis because of its strong banking sector.
  d. The relationship between Iceland and the United Kingdom got seriously damaged.

Question 3

Heterogeneity models go by all of the following names except
 a. discrete heterogeneity c. latent class model
  b. continuous heterogeneity d. Bayesian estimation model

Question 4

In the following formula, k stands for:
 a. the number of observations
  b. the degrees of freedom of the denominator
  c. the number of independent variables
  d. the sample size

Question 5

What performance measurements are applicable to trade promotion programs?

Question 6

A mortality effect occurs when some subjects withdraw from the experiment before it is completed.
 
 Indicate whether the statement is true or false

Question 7

The sale of which of the following products or services would decrease as a result of cocooning?
 a. Movie tickets
  b. Video games
  c. DVDs
  d. Meal-preparation ingredients

Question 8

Running a separate regression model for each person would yield the best results and effectively deal with heterogeneity. We do not do this for all of the following reasons except
 a. researchers don't ordinarily have many pieces of data for each individual
  b. researchers are looking for a unified explanation of a phenomena
  c. individuals tend to give the same answers anyway
  d. it is expensive to prepare a separate marketing approach for each individual

Question 9

A value of R2 = 0.40 means that _____ percent of the variance in the dependent variable is explained by the independent variables.
 a. 80
  b. 60
  c. 40
  d. 16

Question 10

Identify the three forms of trade allowances.