MAC413
The changes that occur in the subject between pretest and posttest in an experimental research is known as
Answer: maturation
Alternative hypothesis is represented by
Answer: hi
If 5% of 25,000 mass communication students of National Open University is used as sample in a study, what is the sample size?
Answer: 1250 students
Which of these is not a threat to external validity of an experiment reseach?
Answer: testing
A sample can be evaluated by
Answer: all of the above
If 95% of 270000 copies of The Nation newspaper on daily circulation is sold, how many copies of the daily circulation are unsold?
Answer: 13500 copies
Which of these is not a type of validity?
Answer: none of the above
A level of measurement without a true zero poit is
Answer: ratio
The first step in the method of conducting a case study research is
Answer: design
Which of these is not a factor that influnces the growth of media research?
Answer: competitions for information
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