ExamTests with Psychometrics: An Introduction by Furr - 3rd edition

What is psychometrics? - ExamTests 1

MC questions with chapter 1

MC question 1

For the differences, indicate which of the two differences below (a or b) you measure:

1. intra-individual differences
2. inter-individual differences

1. Behavior of individual at different times
2. Behavior of two or more people

MC question 2

What conditions does a psychological test need, according to Cronbach, not to meet?

1. Samples collected in a systematic way.
2. The aim is to measure behavior.
3. Test must have behavioral samples.
4. Test must be taken at different times.

MC question 3

What are malingering and demand characteristics examples of?

1. Participant reactivity
2. Score sensitivity
3. Bias
4. Composite scores

MC question 4

A multiple choice exam in which you have only passed or failed is an example of:

1. An open- ended and norm-referenced test.
2. A closed-ended and norm-referenced test.
3. An open-ended and criterion-referenced test.
4. A closed-ended and criterion-referenced test.

MC question 5

Which matters are important when measuring a psychological attribute that is not immediately observable ?

1. Assumption of relationship, task linked to theory and operationalisable definitions.
2. Reliability, task linked to theory and operationalizable definitions.
3. Assumption of relationship, operationalisable definitions and reliability.
4. Only validity and reliability.

MC question 6

All group 8 students are tested for their reading skills with different assignments. For this they receive a long list with all the words they need to read as much as possible in 5 minutes. What kind of test is this?

1. Speeded test
2. Power test
3. Open- ended test

MC question 7

The group 8 students are tested for their reading skills for a second time. This time they receice a list of difficult words, where the number of correct read out words is calculated. What kind of test is this?

1. Open-ended test
2. Power test
3. Closed-ended test
4. Speeded test

MC question 8

Psychometrics relates to:

1. The procedures that are used to estimate and evaluate test attributes.
2. To evaluate differences between specific psychological testen.

MC question 9

What is, according to Furr, psychometrics?

1. A procedure for the conduct of people with elka compare ar.
2. A set of procedures to determine and evaluate psychological test characteristics.
3. A systematic approach to making statements about hypothetical constructs.
4. Measuring differences between human psyc hological characteristics.

Answers MC questions with chapter 1

MC question 1

A = 1, B = 2

MC question 2

D. Test must be taken at different times.

MC question 3

A. Participant reactivity

MC question 4

D. This exam is closed-ended because someone can choose from a limited number of choices. It is criterion referenced because a limit has been set (eg 13 errors is sufficient) that someone must meet to pass the exam.

MC question 5

A. An assumption of relationship between observable behavior and the attribute, this would mean that the test is (at least partially) valid. A theoretical link between the task and the attribute to be measured is important to enable validity. Validity is important because in this case it must be determined with which you can measure the attribute. Operational definitions make it possible to measure and understand unclear concepts (such as intelligence, learning and dreams).

MC question 6

A. Speed tests are tests with a time limit and where you are not expected to complete the entire test and where the test is how far you will respond. This assumes a high probability that answered questions with chapter are answered correctly.

MC question 7

B. Power tests are tests without a time limit and in which the answers are actually important, in which the given answer is looked at and based on this a score is determined for the number of correct answers.

MC question 8

A. With psychometrics the emphasis is on the attributes of tests and being able to evaluate this.

MC question 9

B. Psychometrics is the study of evaluating the attributes of psychological tests.

What is important when assigning numbers to psychological constructs? - ExamTests 2

MC questions with chapter 2

MC question 1

Of what characteristic should a category consist?

1. Categories must be mutually exclusive.
2. Subjects within the category must be identical on the chosen trait.
3. Everyone must fit into a category.
4. All of the above.

MC question 2

Combine the measurement scales (1, 2, 3, 4) with the right examples (a, b, c, d):

1. Nominal
2. Ordinal
3. Ratio
4. Interval

1. Age
2. Intelligence
3. Sex
4. Response time

MC question 3

Determine whether the statements are true or false.

1. A unit of measurement is arbitrary because the original unit is arbitrarily determined.
2. A unit of measurement is arbitrary because it can measure multiple types of objects.
3. A unit of measurement is arbitrary because it can perform multiple types of measurements.

MC question 4

With an interval scale you can apply the following calculations:

1. With an interval scale you cannot calculate something, you can only distinguish between categories.
2. You can add and subtract here.
3. You can multiply and divide but also add and subtract.
4. You may only multiply and divide.

MC question 5

Which of these four examples belongs in an interval scale?

1. Degrees Celsius
2. Response time
3. Money
4. Distance

MC question 6

What is the difference between an ordinal scale and a nominal scale?

1. With a nominal scale there is no zero point and with an ordinal scale there is.
2. With a nominal scale there is no order and with an ordinal scale there is.
3. With an ordinal scale there is no zero point and with a nominal scale there is.
4. With an ordinal scale there is no order and with a nominal scale there is.

MC question 7

Measuring with a unit of measurement assumes an important assumption, what is this?

1. The size of the unit of measurement must always be the same size.
2. The unit of measurement can always be used in several ways.

MC question 8

With a driving test, there is a ... variable with which one can pass or fail. The blood type of a test subject is based on a…. variable.

1. Dichotomous, Categorical
2. Dichotomous, Continuous
3. Categorical, Dichotomous
4. Categorical, Continuous

Answers MC questions with chapter 2

MC question 1

D. The three requirements mentioned are the standard requirements that a category must meet.

MC question 2

1. C, because gender has categories but no order,
2. A, because age has a sequence,
3. D, because reaction time has an absolute zero,
4. B, because intelligence has an arbitrary zero point.

MC question 3

All three statements are true.

MC question 4

B. With an interval scale you have an arbitrary zero point, therefore you can only add an substract, but not multiply and divide.

MC question 5

A. At degrees celsius there is an arbitrary zero point, therefore an interval scale is suitable for this.

MC question 6

B. Nominal only indicates difference and interval indicates, in addition to a difference, also a sequence.

MC question 7

A. If the size of the unit of measurement is not always the same, you cannot measure with it because you then provide no / little information.

MC question 8

A. dichotomous has 2 options: (0 or 1 / bags or strokes etc.) and a categorical variable has several categories (not necessarily limited to 2 options).

What are variability and covariability? - ExamTests 3

MC questions with chapter 3

MC question 1

What is the difference between variability and covariability?

1. The subject that is compared to another (the same for both) subject.
2. The subjects that are compared with each other.
3. Both of the above answers are correct.
4. None of the above answers is correct.

MC question 2

A test (Test A) is performed in which there are several measurement moments. Every participant takes the same test again at every measurement moment (Test A). The measurement results of the different participants at all times are compared with each other. What differences can be looked at?

1. Only intra-individual differences.
2. Only Interindividual differences.
3. Both intra-individual and inter-individual differences.
4. Neither of the two differences.

MC question 3

Calculate the mean of both rows separately:

1. 100, 120, 110, 105, 115
2. 11, 13, 17, 33, 16, 6

MC question 4

Calculate the variance from the following standard deviations:

1. s = 100
2. s = 1
3. s = 25.2

MC question 5

Calculate the standard deviations from the following variances:

1. s² = 2500
2. s² = 900
3. s² = 144

MC question 6

Combine the most likely correlations to the good topics:

MC question 7

For a Sum of Squares of 2000 with N=5, what is the standaard deviation?

1. 20
2. 400
3. 22,36
4. √500

MC question 8

Complete the table (a t/m e):

MC question 9

Which correlation list(s) are correct?

MC question 10

Is the table below the correct norm table for the raw test score X (M = 80, SD = 12)?

1. The z-scores are correct; the T-scores are incorrect.
2. The T-scores are correct; the z-scores are incorrect.
3. Both the z-scores and T-scores are correct.
4. Both the z-scores and T-scores are incorrect.

Answers MC questions with chapter 3

MC question 1

B. Co-variability is the degree to which the variability between different score sets match. Variability is the difference within a set of scores. Therefore, the subjects are different and there is no question of 1 the same subject in covariability and variability.

MC question 2

C. Both intra-individual differences (the results of a participant over all measuring moments) can be looked at as well as inter-individual differences (between the participants).

MC question 3

1. 100+120+110+105+115= 550. 550/N = mean. 550/5=110
2. 11+13+17+33+16+6 = 96 --> 96/6 = 16

MC question 4

S² is the variance. So to go from s to s², this just needs to be squared. a is therefore 1002 = 10,000, b is 12 = 1, and c is 25.22 = 635.04.

s² is the variance. To calculate the variance using the standard deviation, the standard deviation needs to be squared.

1. 100²= 10.000
2. 1²= 1
3. 25,2²= 635,04

MC question 5

s² is the variance. To calculate the standard deviation using the variance, only the √s² needs to be calculated.

1. √2500= 50
2. √900= 30
3. √144= 12

MC question 6

1. B, the level of your education level is likely to have a positive relationship with your income.
2. A, the higher your alcohol level, the less good the ability to walk straight across a line will be, this is therefore a negative relationship.
3. C.

MC question 7

A.

Sum of Squares / N = 2000/5 = 400 = s².

√400 = 20.

MC question 8

To calculate a cross product, the deviations can multiply with each other.

1. 0 x 20 = 0
2. 10 x 10 = 100
3. 0 x 30 = 0
4. 20 x 5 = 100
5. 5 x 10 = 50

MC question 9

List A and B are good, correlations can be between -1 and 1.

MC question 10

D. Both the z-scores and T-scores are incorrect.

What is dimensionality and what is factor analysis? ExamTests 4

MC questions with chapter 4

MC question 1

What questions with chapter are asked about the dimensionality of a test?

1. How many dimensions the test has.
2. How these dimensions are measured.
3. When these dimensions are measured.
4. Whether the dimensions are correlated.

1. Only I. and II. are true
2. III only. and IV. are true
3. Only I. and IV. are true
4. II only. and III. are true

MC question 2

The WISC intelligence test is an example of a:

1. Unidimensional test.
2. Multidimensional test with correlated dimensions.
3. Multidimensional test without correlated dimensions.

MC question 3

Combine the terms:

1. Unidimensional test
2. Multidimensional test with correlated dimensions
3. Multidimensional test without correlated dimensions

1. Test with higher order factors
2. Conceptual homogeneity
3. Test without higher order factors

MC question 4

Which statement (s) is / are true?

1. A test where questions with chapter only reflect math skills is a unidimensional test.
2. A test where math skills and reading skills are reflected is a multi-dimensional test.
3. The WISC is a unidimensional test.

1. Only I. and II. are true
2. Only I. is true
3. Only II. is true
4. II only. and III. are true
5. None of the claims is true

MC question 5

Which statement (s) is / are not true?

1. I and II are true
2. I, III and IV are true
3. All statements are true
4. All statements are not true

MC question 6

When we look at the "eigenvalues ​​greater than one" rule, how many dimensions are there?

1. 1
2. 2
3. 3
4. 4 or more

MC question 7

Which of these statements are true?

1. Use CFA if you already have a better view of the test.
2. With a CFA you check your own idea about dimensions, for example.

1. Only I. is true
2. Only II. is true
3. Both statements are true
4. Both statements are not true

MC question 8

Which of the following statements about principal components in PCA is incorrect?

1. When choosing a principal component, true score variance is maximized at the expense of error variance.
2. A principal component can be seen as a direction in the p-dimensional space of the variables.
3. In the unspoiled solution, each principal component is orthogonal to all other principal components.
4. The first principal component explains as much variance as possible of the variables.

Answers MC questions with chapter 4

MC question 1

C. The third question (not mentioned in this question) is if the test has more than one dimension, what are those dimensions?

MC question 2

B. An intelligence test consists of a general factor measured by different sub-factors. These sub-factors each represent different types of intelligence.

MC question 3

1. B.
2. A.
3. C.

MC question 4

A. A test where questions with chapter only reflect math skills is a unidimensional test, because only one dimension is measured. With mathematical and reading skills, there are two dimensions, which means that this is a multidimensional test. The WISC is a multidimensional test, becauses it assesses different psychological attributes.

MC question 5

B. Identifying the number of dimensions or factors is the second step in performing an EFA. The first step is choosing a statistical technique.

MC question 6

B. Considering the eigenvalue greater than one rule, you look at the number of values greater than 1. Each of these values ​​higher than 1 count as a dimension. In this particular question there are 2 values higher than 1, which might conclude that the test items reflect 2 dimensions.

MC question 7

C. Both statements are true. CFA is a test to check your existing idea about the test.

MC question 8

A. When choosing a principal component, true score variance is maximized at the expense of error variance.

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