Question 1

Which correlation coefficient indicates a positive relationship?

Accepted Answer

A)  +1.2 
B)  0.8 
C)  -0.8 
D)  1.96

Question 2

When researchers want an explanation for the differences in data, they would use ______________.

Accepted Answer

A)  descriptive statistics 
B)  inferential statistics 
C)  the correlation coefficient 
D)  the method of limited decisions

Question 3

Which correlation coefficient demonstrates the strongest relationship?

Accepted Answer

A)  +0.5 
B)  -0.7 
C)  +1.2 
D)  -3.2

Question 4

When writing a Results section, according to the authors, you should first ________.

Accepted Answer

A)  remind the reader of the initial question of the study posed in the introduction 
B)  review prior results stemming from previous research 
C)  review the hypotheses 
D)  present results that directly address the question and alternative answers

Question 5

The correlation coefficient is a ________________.

Accepted Answer

A)  measure of variability 
B)  measure of central tendency 
C)  parameter 
D)  measure of a relationship between two or more variables

Question 6

Psychologists want to be able to do two things with the data they collect. The first is to summarize the information from a study or experiment. To do this, they use _________.

Accepted Answer

A)  descriptive statistics 
B)  inferential statistics 
C)  univariate statistics 
D)  multivariate statistics

Question 7

Saundra collected a data set. She wanted to understand how spread out the scores were. What were the highest and lowest scores? Were the scores tightly concentrated? Saundra went to her psychology professor who told her that she should study up on ________________.

Accepted Answer

A)  measures of central tendency 
B)  measures of parameters 
C)  measures of probability 
D)  measures of variability

Question 8

The mean, median, and mode are ______________.

Accepted Answer

A)  measures of central tendency 
B)  measures of variability 
C)  characteristics of a normal distribution, but not a skewed distribution 
D)  characteristics of a skewed distribution, but not a normal distribution

Question 9

A lopsided distribution in which scores cluster at the high or low end of the distribution is referred to as ______________.

Accepted Answer

A)  normal 
B)  bimodal 
C)  skewed 
D)  standard

Question 10

Students in Dr. Friedlander's class got the following scores on their first test: 75, 77, 87, 63, 93, 77, 72, 80, 57, 68, 76. What is the mean?

Accepted Answer

A)  77 
B)  75 
C)  36 
D)  76

Question 11

The first step in organizing raw data is to ______________.

Accepted Answer

A)  get a measure of the central tendency 
B)  establish the range 
C)  construct a frequency distribution 
D)  identify standard deviation

Question 12

In their application of the QALMRI method to studying whether mental practice can change subsequent golf putting, your text authors offer which of the following alternatives?

Accepted Answer

A)  Mental practice will rarely improve putting. 
B)  Mental practice might not have any effect on putting. 
C)  Mental practice hurts putting when participants imagine successfully tapping the ball into the hole but actually improves performance when they imagine tapping the ball so that it misses the hole. 
D)  Mental practice is unrelated to putting because that is a physical action.

Question 13

Which correlation coefficient indicates a negative relationship?

Accepted Answer

A)  +1.2 
B)  0.8 
C)  -0.8 
D)  -1.96

Question 14

Students in Dr. Friedlander's class got the following scores on their first test: 75, 77, 87, 63, 93, 77, 72, 80, 57, 68, 76. What is the median?

Accepted Answer

A)  77 
B)  75 
C)  36 
D)  76

Question 15

Your study's hypothesis will tend to be initially found in a research paper's ________ section.

Accepted Answer

A)  Introduction 
B)  Methods 
C)  Results 
D)  Discussion

Question 16

Dr. Starr gives 10-question quizzes in her psychology class. When she returns quizzes, she puts on the board how many people scored a 10, 9, 8, 7, 6, 5, 4, 3, 2, and 1. This is called a ______________.

Accepted Answer

A)  normal curve 
B)  frequency distribution 
C)  frequency polygon 
D)  histogram

Question 17

Your text authors suggest that the QALMRI method can serve the practical purpose(s) of ________.

Accepted Answer

A)  quickly solving statistical related questions 
B)  determining the validity of a study only 
C)  understanding the meaning of a research study only 
D)  understanding the meaning of a research study and for reporting your own research

Question 18

The "Q" in the QALMRI method stands for ________.

Accepted Answer

A)  quiz 
B)  query 
C)  question 
D)  quintessential

Question 19

The Discussion section of a research paper tends to be associated with ________.

Accepted Answer

A)  presentation of data 
B)  inferences 
C)  a description of what was done 
D)  the general logic of a study

Question 20

Descriptive statistics are used to ______________.

Accepted Answer

A)  summarize data from a sample 
B)  decide if two sample groups are different from each other 
C)  decide if two variables are related to each other 
D)  determine if an experimental design has high reliability

Exam 14: Statistics Part B : How to Think About Research Studies