According to the text, which of the following statements about bar codes is true?
a. Bar codes were first used in 2000.
b. Bar codes are also called universal pricing codes (UPCs).
c. Bar codes can be read by optical scanners.
d. Bar codes cannot be used as a marketing research tool.
Ans: b. Bar codes are also called universal pricing codes (UPCs).
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In a closing statement, the term "recurring costs" refers to:
A. title insurance B. costs common to all escrows C. deed transfer taxes D. impound items
All of the following statements are true about external validity except ________
A) threats to external validity arise when the specific experimental conditions do not realistically take into account the interactions of other relevant variables in the real world. B) external validity is the basic minimum that must be present in an experiment before any conclusion about treatment effects can be made C) factors that threaten internal validity may also threaten external validity, the most serious of these being extraneous variables. D) A and C are true