Examlex
A researcher does a study examining the effects of a preschool program. He uses a nonequivalent comparison-group design. He finds that the cognitive growth of his experimental group is greater than that of his control. Unfortunately, he later finds that in general children who live in the area where he drew his experimental group tend to grow faster cognitively than children who were from the area where he drew his control group. When he discovered this problem, he discovered what threat to the internal validity of his study?
20 Days
A specific time period consisting of twenty consecutive days.
Hire Date
The specific date on which an individual officially begins their employment with an organization.
Employee Benefits
Various non-wage compensations provided to employees in addition to their normal salaries or wages. These can include health insurance, retirement plans, and vacation time.
Accountant
A professional specializing in maintaining and examining financial records, ensuring accuracy and compliance with laws.
Q4: A _ is a numerical characteristic of
Q13: An example of a cross-sectional exploratory study
Q14: The goal of a research study is
Q15: Develop an example of a case study
Q44: Describe how one would conduct phenomenological research
Q54: The time orientation of mixed research refers
Q95: If the clusters are of equal sizes,
Q95: The ability to generalize the results of
Q109: Often, we do not know at the
Q126: If everyone in your neighborhood had exactly