Deck 16: Other Statistical Parameters and Tests

Question 1

The diagnostic accuracy of a test is sometimes called the _________ of a diagnostic test.

A)likelihood
B)sensitivity
C)specificity
D)efficiency

Answer 1

efficiency

Question 2

Which of the following is not true of factor analysis?

A)there are an infinite number of correct solutions
B)it can be used to reduce the number of items on a test or measure
C)factor analysis designs are similar to ANOVA designs
D)in IQ research, it found a single "g" factor

Answer 2

factor analysis designs are similar to ANOVA designs

Question 3

A false negative is defined as

A)a test result is positive, and the patient actually has the condition
B)a test is negative, and the patient actually has the condition
C)a test is positive, and the patient doesn't have the condition
D)a test is negative, and the patient doesn't have the condition

Answer 3

a test is negative, and the patient actually has the condition

Question 4

A true negative is defined as

A)a test result is positive, and the patient actually has the condition
B)a test is negative, and the patient actually has the condition
C)a test is positive, and the patient doesn't have the condition
D)a test is negative, and the patient doesn't have the condition

Question 5

A false positive is defined as

A)a test result is positive, and the patient actually has the condition
B)a test is negative, and the patient actually has the condition
C)a test is positive, and the patient doesn't have the condition
D)a test is negative, and the patient doesn't have the condition

Question 6

Which of the following is true about a multivariate analysis of variance?

A)one or more independent variables, one or more dependent variables
B)two or more independent variables, with one or more levels of each independent variable
C)one or more independent variables, two or more dependent variables
D)all of the above are true

Question 7

Shrinkage in linear discriminant function analysis can be minimalized by

A)having the number of participants in the smallest group be 10 times the number of predictor variables
B)having the number of participants in the largest group be 10 times the number of predictor variables
C)having the number of participants in the smallest group be at least 30
D)having the number of participants in both groups be at least 150

Question 8

A test possesses good specificity if it has a

A)high true-positive rate
B)high true-negative rate
C)high false-positive rate
D)high false-negative rate

Question 9

Which of the following is not true about MANCOVA?

A)handles more than one dependent variable
B)covaries one or more nuisance variables
C)handles one or more independent variables
D)covaries only one confounding variable but one or more nuisance variables

Question 10

A test possesses good sensitivity if it has a

A)high true-positive rate
B)high true-negative rate
C)high false-positive rate
D)high false-negative rate

Question 11

In linear discriminant function analysis, the criterion variable

A)is usually dichotomous
B)is usually continuous
C)is an a priori assumption by the experimenter
D)all of the above
E)a and c

Question 12

A true positive is defined as

A)a test result is positive, and the patient actually has the condition
B)a test is negative, and the patient actually has the condition
C)a test is positive, and the patient doesn't have the condition
D)a test is negative, and the patient doesn't have the condition

Question 13

The statistical object of cluster analysis is to minimize _______ variation and maximize variation between _________.

A)within-group; groups
B)group; subjects
C)subject; confounding variables
D)trend; cycles

Question 14

Which of the following is true of multivariate statistics?

A)almost always computed by computer programs
B)can be easily computed by the average calculator
C)there are few debates about their use and interpretation
D)all of the above are true

Question 15

Which of the following is not true of ANCOVA?

A)covaries the effect of one or more nuisance variables
B)covaries the effect of one or more nuisance variables on the independent variable
C)covaries the effect of one or more nuisance variables on the dependent variable
D)covaries the effect of one or more confounding variables

Question 16

The number of new verified cases of a disease in a year is called

A)prevalence
B)incidence
C)likelihood
D)number of new cases

Question 17

If a patient is harmed or killed just by the treatment for a disease, it is called the ____________ effect.

A)not too good
B)bad
C)iatrogenic
D)polygenic

Question 18

Canonical correlation comes closest to being a technique related to

A)correlation
B)regression
C)factor analysis
D)all of the above

Question 19

To have a reliable factor analysis of 57 items, the study should be conducted on at least ________ people.

A)57
B)285
C)570
D)1140

Question 20

Signal detection theory can be graphically represented by a

A)scatterplot
B)receiver operating curve
C)histogram
D)bar graph