Psychological Assessment (Diagnosis) pt.9

Item Difficulty Index

It answers the question: what proportion of test takers answered each item correctly

Its value can theoretically range from 0 to 1

The larger the difficulty index, the easier the item

An item is not good if everyone gets it right or if everyone gets it wrong

Range difficulty should be: 0.30 to 0.80

Item Difficulty Index

Its value can theoretically range from 0 to 1

Item Difficulty Index

The larger the difficulty index, the easier the item

An item is not good if everyone gets it right or if everyone gets it wrong

easier

The closer it is to 0, the more difficult the item is; the higher or the closer it is to 1, the ____ the item is.

difficult

The closer it is to 0, the more ___ the item is; the higher or the closer it is to 1, the easier the item is.

Item Difficulty Index

Range difficulty should be: 0.30 to 0.80

Item Difficulty Index

The item is not good if everyone gets the correct answer, because that means the item or test is too easy. The item is also not good if nobody gets it right because that means the test item is too difficult.

However, it should depend on the context or the test, as there are tests that are inherently very difficult or easy (e.g., speed tests). This premise may not apply in such cases.

rejection or revision

In item difficulty index, if it goes beyond .30 or .80 it is subject for _____.

Formula of Item Difficulty Index

To calculate the item difficulty index, you just have to divide the number of people who got the correct answer by the total number of people who took the test.

.50

For example, if 5 out of 10 people got item number 1 correct, the item difficulty index would be __ (meaning half got it right, half got it wrong).

Item Discrimination Index

A measure of the difference between the proportion of high scorers answering an item correctly and the proportion of low scorers answering the item correctly

The higher the value of d (item discrimination index), the greater the high scorers answering the item correctly.

An item is good if most of the high scorers answered the item correctly

A negative d-value (item discrimination index) is a red flag because it shows that the low scoring examinees are more likely to answer the items correctly than high scoring examinees.

Item Discrimination Index

The higher the value of d (item discrimination index), the greater the high scorers answering the item correctly.

Item Discrimination Index

An item is good if most of the high scorers answered the item correctly

Item Discrimination Index

A negative d-value (item discrimination index) is a red flag because it shows that the low scoring examinees are more likely to answer the items correctly than high scoring examinees.

correctly

The higher the value of d (item discrimination index), the greater the high scorers answering the item ____.

item discrimination index

The higher the value of d (______), the greater the high scorers answering the item correctly.

higher

The ___ the value of d (item discrimination index), the greater the high scorers answering the item correctly.

good

An item is ___ if most of the high scorers answered the item correctly

negative

A ___ d-value (item discrimination index) is a red flag because it shows that the low scoring examinees are more likely to answer the items correctly than high scoring examinees

red flag

A negative d-value (item discrimination index) is a ____ because it shows that the low scoring examinees are more likely to answer the items correctly than high scoring examinees.

low scoring; high scoring

A negative d-value (item discrimination index) is a red flag because it shows that the ____ examinees are more likely to answer the items correctly than ____ examinees.

Level C

RPms are not allowed to administer a _____ test.

Level C

However, even if a person is an RPsy, if they do not have prior and sufficient training for the TAT or any ____ test, they should not be conducting the test.

RPsy

However, even if a person is an ___, if they do not have prior and sufficient training for the TAT or any Level C test, they should not be conducting the test.

Level C

The TAT is a ____ test

Level A

test that can adequately be administered, scored and interpreted using manual and general orientation

Level B

tests that required some technical knowledge of tests construction and use

Level A

Tests that can be adequately administered, scored, or interpreted using the manual.

If you have been oriented on it, you may use it.

Can be administered by non-psychologists or non-RPMs.

Level B

Requires technical knowledge, technician-like skills, or technical skills.

RPMs can conduct Level A and Level B tests.

Level A and Level B

RPMs can conduct _____ tests

Level C

tests that require substantial understanding of testing and supporting psychological fields together with supervised experience.

Level C

Usually restricted to individuals with a Master's degree in Psychology, Registered Psychologists, or those with actual training in ___ tests.

Typically includes individually administered intelligence tests such as WISP, WAIS, SB-5, or personality tests that use projective methods like TAT.

A degree and prior training are required.

WISC

Ley, a psychologist, needs to conduct an intelligence test on her 15-yearold client. What test should she use?

compactedness.

The best answer is WISC instead of WASI because the WASI (Wechsler Abbreviated Scale of Intelligence) is usually not recommended for conducting a full intelligence test due to its "______"

Since it is abbreviated, it is shorter, so instead of using WASI, it is better to allocate time to conduct a more comprehensive intelligence scale like the WISC (Wechsler Intelligence Scale for Children), as it provides a more thorough assessment.

Wechsler Preschool and Primary Scale of Intelligence - IV Edition

WPPSI-IV

Wechsler Intelligence Scale for Children - V Edition

WISC V

Wechsler Adult Intelligence Scale IV - Edition

WAIS IV

Wechsler Abbreviated Scale of Intelligent - II Edition

WASI II

2 years old to 7 years old and 11 months old

WPPSI-IV (Wechsler Preschool and Primary Scale of Intelligence -IV Edition) is age appropriate for:

WPPSI-IV (Wechsler Preschool and Primary Scale of Intelligence -IV Edition)

An intelligence test that can be conducted for: 2 years old to 7 years old and 11 months old

6 years old to 16 years old

WISC V (Wechsler Intelligence Scale for Children - V Edition) is age appropriate for:

WISC V (Wechsler Intelligence Scale for Children - V Edition)

An intelligence test that can be administered for: 6 years old to 16 years old

16 to 90 years old

WAIS IV - (Wechsler Adult Intelligence Scale IV - Edition) is age appropriate for:

WAIS IV - (Wechsler Adult Intelligence Scale IV - Edition)

An intelligence test that can be administered for: 16 to 90 years old

6 years old to 90 years old

WASI II (Wechsler Abbreviated Scale of Intelligent - II Edition) is age appropriate for:

WASI II (Wechsler Abbreviated Scale of Intelligent - II Edition)

An intelligence test that can be administered for: 6 years old to 90 years old

WPPSI-IV (Wechsler Preschool and Primary Scale of Intelligence -IV Edition)

WISC V (Wechsler Intelligence Scale for Children - V Edition)

WAIS IV - (Wechsler Adult Intelligence Scale IV - Edition)

WASI II (Wechsler Abbreviated Scale of Intelligent - II Edition)

All has a mean of 100 and SD of 15

BPI

The clinician needed a test that measures psychopathology in a relatively quick time. What would be his best option

BPI (Basic Personality Inventory)

is quicker to administer compared to the MMPI (Minnesota Multiphasic Personality Inventory-II), which, although it also measures psychopathology, takes much longer to complete.

intelligence scale

PNLT (Purdue Non-Language Test) is more of an _____, similar to the WISC (Wechsler Intelligence Scale for Children).