Exam (elaborations)

PSY 606 Exam 2 || All Questions Answered Correctly.

0 purchase

Course
PSY 606

Institution
PSY 606

If you wish to show stability of a test, you would calculate: a) Cronbach's alpha b) Split-half reliability c) Test retest reliability d) SEM correct answers c) Test retest reliability If someone's WAIS-IQ was 103, and the published SEM is 3 pts, then the 95% confidence interval for that sco...

[Show more]

Preview 2 out of 15 pages

View example

Uploaded on October 9, 2024
Number of pages 15
Written in 2024/2025
Type Exam (elaborations)
Contains Questions & answers

if you wish to show stability of a test you would

Institution PSY 606
Course PSY 606

FullyFocus Member since 2 year 549 documents sold

$12.29

Add to cart

Add to wishlist

100% satisfaction guarantee
Immediately available after payment
Both online and in PDF
No strings attached

PSY 606 Exam 2 || All Questions Answered Correctly.
If you wish to show stability of a test, you would calculate:
a) Cronbach's alpha
b) Split-half reliability
c) Test retest reliability
d) SEM correct answers c) Test retest reliability

If someone's WAIS-IQ was 103, and the published SEM is 3 pts, then the 95% confidence
interval for that score would be:
a) 103 +- 3
b) 103 +- 6
c) 95 +- 3
d) 95 +- 6 correct answers b) 103 +- 6

A way of estimating the average correlation among all pairs of items for variably-scored items
(e.g., Likert scales) is:
a) KR-20
b) Split-half
c) Alternate forms
d) Cronbach's alpha correct answers d) Cronbach's alpha

The primary source of error for split-half reliability is:
a) statistical factors (restricted range)
b) random or chance differences
c) true change
d) item sampling correct answers a) statistical factors (restricted range)

The Spearman-Brown prophecy formula is used to correct which of the following estimates of
reliability:
a) test retest
b) split half
c) alternate forms
d) all of the above correct answers b) split half

The primary source of error for test retest is:
a) true change
b) item sampling
c) random or chance differences
d) statistical factors (restricted range) correct answers a) true change

The reliability coefficient (rxx) is essentially correlating the test score with a:
a) different test measuring something similar
b) another version of the same test
c) some criterion measure
d) all of the above correct answers b) another version of the same test

, Which of the following is a short-cut method of calculating the inter-item correlation for tests
with dichotomous items?
a) Cronbach's alpha
b) Alternate forms
c) Test retest
d) KR-21 correct answers d) KR-21

If you want to validate an employee screening test and compare scores to supervisor's ratings one
year later, this would constitute what type of validity?
a) content
b) construct
c) predictive
d) concurrent correct answers c) predictive

For clinical scales (e.g., anxiety, depression) it's a good idea to manipulate what type of validity?
a) face
b) content
c) criterion-related
d) construct correct answers a) face

Given: y' = 5X + 10 and Se = 3, which of the following is the 68% confidence interval for X = 5?
a) 35 plus or minus 6
b) 25 plus or minus 6
c) 35 plus or minus 3
d) 25 plus or minus 3 correct answers c) 35 plus or minus 3

If p = .65 and D = .20, we could characterize this item as:
a) difficult and extrinsic ambiguity
b) easy and extrinsic ambiguity
c) difficult and intrinsic ambiguity
d) easy and intrinsic ambiguity correct answers d) easy and intrinsic ambiguity

If the bottom scoring group gets an item correct more often than the top scoring group, this
would imply:
a) easy item
b) extrinsic ambiguity
c) intrinsic ambiguity
d) difficult item correct answers c) intrinsic ambiguity

The major advantage of item-total (rpb) over discrimination index (D) is that the item-total
correlation:
a) uses significance as a criterion of acceptable discrimination thereby taking sample size into
account
b) is a more sensitive measure of discrimination
c) always produces a larger value

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.

Quick and easy check-out

You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.

Focus on what matters

Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!

Frequently asked questions

What do I get when I buy this document?

You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.

Satisfaction guarantee: how does it work?

Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.

Who am I buying these notes from?

Stuvia is a marketplace, so you are not buying this document from us, but from seller FullyFocus. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for $12.29. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

69052 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy study notes for 15 years now

Start selling

Exam (elaborations)

PSY 606 Exam 2 || All Questions Answered Correctly.

Document information

Subjects

Written for

Seller

Reviews received

Content preview