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ABPP-CN > Chapter 6 - Psychometrics > Flashcards

Chapter 6 - Psychometrics Flashcards

0
Q

What is a measure of a test’s internal consistency?

A

Cronbach’s Alpha

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1
Q

What is the probability of type 1 error?

A

Alpha

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2
Q

What is the probability theorem employed in decision analysis to allow the posterior probability of an event to be calculated?

A

Bayes’ theorem

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3
Q

What is the probability of making a type 2 error in hypothesis testing?

A

Beta

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4
Q

What is the theorem that states if an independent variable has finite variances then standard expression of the sum will be normally distributed?

A

Central limit theorem

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5
Q

What is the multi variate stat technique used to describe differences between two or more groups on a set of measures or to classify subjects into groups on the basis of a set of measures?

A

Discriminant analysis

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6
Q

What is another name for type II error?

A

False negative

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7
Q

What is another name for type I error?

A

False positive

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8
Q

What is the error that occurs when a test incorrectly indicates the absence of a particular trait or condition when that trait or condition actually occurs?

A

False negative
Type II error
Beta error

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9
Q

What is the error that occurs when a test incorrectly indicates the presence of a trait or condition when non genuinely exists?

A

False positive
Type I error
Alpha error

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10
Q

What is a measure of reliability reflecting agreement among raters that is adjusted for the expected level of chance agreement?

A

Kappa

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11
Q

What is a measure of internal consistency for tests with dichotomous variables?

A

Kuder-Richardson formula

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12
Q

What is a correlation coefficient that expresses the relationship between the criterion scores and an additive combination of predictor scores?

A

Multiple correlation

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13
Q

What is a measure of the relationship between two variables that exists after accounting for the relationship of a third measure to each of the two variables?

A

Partial correlation

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14
Q

What is the summary assessment of the ability of a test to discriminate between groups, taking into account measurement error?

A

Person separation index

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15
Q

What is the probability of a specific result on a test?

A

Predictive accuracy

16
Q

What is the ability of a test to predict a specific criterion?

A

Predictive validity

17
Q

What is the ratio of the number of times the event of interest occurs relative to the number of opportunities for the event to occur?

A

Probability

18
Q

What is a multi variate statistical technique that evaluates whether profiles differ in terms of shape and overall elevation?

A

Profile analysis

19
Q

What is the plot of the probability of detecting a condition against that probability of false alarms?

A

Receiver operating characteristic curve

20
Q

What is used to establish optimal cut-offs for prediction of binary outcomes?

A

ROC curve

21
Q

What is a method of statistical analysis in which a single outcome variable is related to one or more predictor variables by examining the tendency for scores on the outcome to move in concert with scores on the predictors?

A

Regression analysis

22
Q

What is the tendency for scores at the extremes of a distribution to migrate toward the mean on repeated assessment due to increased probability closer to the center of the distribution?

A

Regression toward the mean

23
Q

What is used to determine whether changes present on follow-up testing exceed what is considered to result from the methodological aspects associated with repeat assessment?

A

Reliable change index

24
Q

What is the reliability change index based on?

A

Test-retest reliability
Standard error of the test
Practice effects

25
Q

What is the ability to detect the presence of a signal from background noise?

A

Signal detection theory

26
Q

What is an estimate of the accuracy of a prediction of test performance, based on the difference between the obtained score and the predicted score, the number of pairs of scored and the reliability of the test

A

Standard error of the estimate

27
Q

What is a measure of the variability of scores obtained on a test relative to the true scores?

A

Standard error of measurement

28
Q

How does the size of a sample affect the standard error of the mean?

A

Larger the sample, smaller the standard error of the mean

29
Q

What is a score transformed to reflect its distance from the mean measures in SD units?

A

Standard score

30
Q

What is the process of selecting a random sample from specific groups to ensure adequate representation of demographic groups?

A

Stratified sample

31
Q

What is a test of differences between sample means based on the student’s distribution?

A

T test

32
Q

What is the measure of the degree to which scores deviate from the mean

A

Variance

ABPP-CN (26 decks)

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