MCQ On Research Methodology with answer key - PART - 7

 

MCQ on Research Methodology 

with answer key - PART - 7

1. A type II error occurs when:

  A) the null hypothesis is incorrectly rejected when it is true  
B) the test is biased
C) the null hypothesis is incorrectly accepted when it is false
D) the sample mean differs from the population mean

... Answer is : C) the null hypothesis is incorrectly accepted when it is false

2. What does the probability of “rejecting null hypothesis when it is true’’ called?

A) Power of the test
B) Level of confidence
C) Type-I error 
D) Type-II error 

... Answer is : C) Type-I error 

3. The probability of making a Type I error is denoted by 

A) β   
B) 1 - β
C) α 
D) 1 - α

... Answer is : C) α 

4. When the p-value is used for hypothesis testing, the null hypothesis is rejected if 

A) α< p-value 
B) p-value ≤ α     
C) p-value = α
D) p-value ≥ α

... Answer is : B) p-value ≤ α     

5. Which of the following statements sounds like a null hypothesis?

A) There is no difference between male and female incomes in the population 
B) The coin is not fair
C) There is a correlation in the population
D) The defendant is guilty

... Answer is : A) There is no difference between male and female incomes in the population 

6. The cutoff the researcher uses to decide whether to reject the null hypothesis is called the: .

A) Probability value
B) Significance level
C) Alpha level
D) Both b and c are correct

... Answer is : D) Both b and c are correct

7. The form of the alternative hypothesis can be:

A) one or two-tailed
B) one-tailed
C) two-tailed
D) neither one nor two-tailed 

... Answer is : A) one or two-tailed

8. Which of the following values is not typically used for α ?

A) 0.01
B) 0.10 
C) 0.25
D) 0.05

... Answer is : C) 0.25

9.Respondent validation is the process by which:

A) Researchers ask their participants to comment on an account of the findings
B) The validity of an interview schedule can be measured
C) The problem of low response rates to a survey can be overcome
D) Participants collaborate with the researcher to design the research

... Answer is : A) Researchers ask their participants to comment on an account of the findings

10. The standard deviation is

A) An approximate indicator of how numbers vary from mean
B) A measure of variability
C) The square root of variance 
D) All the above

... Answer is : D) All the above