PSY 340 Week 6 Quiz

PSY 340 Week 6 Quiz | Wilmington University

Question 1

The grades received by 10 college sophomores in a test are A, B, D, A, A, A, C, B, C, and A. From this data, it can be inferred that the mode is _____.    

·         B  

·         A  

·         C  

·         D

 

 Question 2

When graphically depicting frequency distributions, a _____ uses bars to display a frequency distribution for a quantitative variable.    

·         histogram  

·         pie chart  

·         polygon  

·         bar graph

 

 Question 3

The scores obtained by five college students in a test are 25, 25, 30, 35, and 40. What is the mean for this set of scores?    

·         25  

·         31  

·         40  

·         34

 

 Question 4

Which of the following is a measure of central tendency?    

·         Standard deviation  

·         Meridian  

·         Frequency distribution  

·         Median

 

Question 5

In which of the following ways can a study aimed at examining college students' attitudes toward tuition increases demonstrate external validity?  

·         sampling only students enrolled at colleges that have not raised tuition  

·         focusing on the difference in attitudes between students who have experienced tuition increases and students who have not  

·         lowering tuition for one semester and raising it for the next semester  

·         showing that the results apply to college students from other universities as well

 

Question 6

Which of the following is likely to improve the external validity of a research study?  

·         including groups from various cultures  

·         employing only one type of experimenter  

·         being sure that all participants have the same ethnic background  

·         using only first year students and sophomores as participants

 

Question 7

What is external validity?  

·         the generalizability of research findings  

·         the practical application of research findings  

·         the effectiveness of the manipulation of an independent variable  

·         the adequacy of an experimental design

 

 Question 8

Neil conducted a study on a group of women in which they viewed cartoons for an hour under one of two environmental conditions—either alone or with other participants. After the study, the participants rated how much they enjoyed watching the cartoons under the two different conditions. What can be concluded based on the results of this study?  

·         Women enjoy watching cartoons more than men.  

·         Men enjoy viewing cartoons more in the presence of others.  

·         The study has high external validity.  

·         The results of the study cannot be generalized to males.

 

 Question 9

When the results of a study can be generalized to other subject populations, the study is said to have validity.

  

·         construct  

·         internal  

·         statistical  

·         external

 

 

Question 10

Statistically, significant results mean that the results are  

·         very important.  

·         likely to be due to true differences between the groups.  

·         likely to be due to chance differences between the groups.  

·         meaningless.