29. An industrial psychologist obtained a list of the 859 employees in a large c

Question

29. An industrial psychologist obtained a list of the 859 employees in a large company. He numbered the employees from 001 to 859, then used a table of random numbers to choose a sample of 100 employees. What kind of sample did he select?

a. stratified random sample  

b. cluster sample   

c. systematic sample

d. simple random sample

30. Which of the following is not a probability sample?  

a. stratified random sample

b. quota sample  

c. simple random sample  

d. cluster sample

31. Why is it possible for condition means to differ at the end of an experiment even if the independent variable had no effect?   

a. a Type II error has occurred

b. error variance  

c. randomization   

d. a null finding has been obtained

32. Inferential statistics such as t-tests are used to test  

a. the likelihood of a Type II error  

b. pretests   

c. directional, but not nondirectional hypotheses

d. differences between condition means  

33. A researcher hypothesizes that babies will fall to sleep more quickly if they can hear the sound of a recorded heartbeat. The null hypothesis for this study is that  

a. babies who hear a heartbeat will fall asleep more quickly than those who don’t hear a heartbeat   

b. babies who hear a heartbeat will fall asleep more slowly than those who don’t hear a heartbeat

c. babies who hear a heartbeat will fall asleep just as quickly as those who don’t hear a heartbeat  

d. babies who hear a heartbeat will not fall asleep   

34. If statistical analyses show that the difference between condition means is larger than would be expected on the basis of error variance alone, a researcher will   

a. accept the null hypothesis

b. reject the null hypothesis   

c. fail to reject the null hypothesis  

d. reject the experimental hypothesis  

35. If statistical analyses show that the difference between condition means is no larger than would be expected on the basis of error variance alone, a researcher will   

a. accept the null hypothesis   

b. reject the null hypothesis

c. fail to reject the null hypothesis   

d. reject the experimental hypothesis

Explanation / Answer

Q 29 Answer: d. simple random sample

Q 30 Answer:  b. quota sample  

Q 31 Answer: a. a Type II error has occurred

Q 32 Answer: d. differences between condition means  

Related Questions

Navigate

• Browse (All)
• Browse 2
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.