Answer to Question 1
Answer: A
Answer to Question 2
Internal validity refers to the confidence you have that the results of the evaluation are in fact correct. The threats to internal validity are:
Maturation: changes that occur due to passage of time
Testing: the influence of pretesting on learning
Instrumentation: different tests can cause different scores
Statistical regression: those who score very high and very low on a test tend to regress to the middle when taking the test again
Initial group differences: an initial difference between the control group and trainees
Mortality: loss of group members
Diffusion of training: interaction of trainees and control group in workplace
Compensating treatments: when control group is from different department there may be a concern of an unfair advantage
Compensatory rivalry: the control group may see it as a challenge and compete for higher production
Demoralized control group: the control group may believe they're not as good and in response give up
External validity is the confidence that the findings you have will generalize to others who undergo the training.
Testing: if pretest is no longer undertaken, it can be difficult to conclude that future training is effective.
Selection: Training programs that are designed for one level of employees will not work at all levels of employees due to differences in motivation, KSAs.
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Color mixtures of refracted light—additive process.
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Three Phases of the Tissue/Wound Repair Process.
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