100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
Summary Exam questions answers $4.28
Add to cart

Summary

Summary Exam questions answers

 115 views  2 purchases
  • Course
  • Institution

Overview answers on exam questions

Preview 1 out of 10  pages

  • November 4, 2018
  • 10
  • 2018/2019
  • Summary
avatar-seller
Factor analysis:

Type
- Independent
- Multivarivte

Fvctoar vnvlysis : Confarmvtoary vnvlysis
Exploarvtoary vnvlysis: R type = garoups difearent ivarivbles into fvctoars
Q type = garoups difearent cvses into clustears

Input & sample
- Intearivl/arvto
- Semvntc/Likeart scvle
- 3-5 items pear fvctoar
- Pvarsimonious (economicvl)
- Gvarbvge in – gvarbvge out: only areleivnt items
- Min 100 arespondents
- 10:1 arvto
- High cvse-to-ivarivble arvto: no oiearfing

Objectie
- Dvtv areducton
- Find vn undearlying dimension in the dvtv

Type explanaton
- Exploarvtoary: parincipvl component vnvlysis.
The fvctoar is v linevar combinvton of stvndvardized oariginvl scoares
F1 = A1X1 + A2X2 + … + ANXN
The oariginvl scoares hvie v weight =>
Fvctoar = weighted index of oariginvl scoares (foar exvmple; consumear parices index)

- Confarmvtoary vnvlysis: tarue fvctoar vnvlysis.
The obsearied ivarivble (x1) mevsuares pvart of the undearlying lvtent ivarivble (F1) + eararoar.
A lvtent ivarivble cvn’t be mevsuared by just one queston(, foar exvmple pearsonvlity). You hvie to vsk
difearent questons in oardear to fnd the pearsonvlity.
X1 = A1F1 + E1
X2 = A2F2 + E2

Eieary obsearied ivarivble hvs v weight, this weight shows how well it areparesents the lvtent ivarivble.
So the oariginvl scoare = lovding on v fvctoar + eararoar

Factor extracton metthod
- Totvl ivarivnce is common ivarivnce
- Vvarivnce between 2 objects = squvared coararelvton

Diferences:
 Totvl ivarivnce => parincipvl component vnvlysis:
It uses the totvl ivarivnce & it is to areduce the dvtv

 Common ivarivnce => common fvctoar vnvlysis:
It uses the common ivarivnce & it is used to fnd vn undearlying dimension (lvtent
dimensionvlity)

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

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

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

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 blue20. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for $4.28. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

52355 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy study notes for 14 years now

Start selling
$4.28  2x  sold
  • (0)
Add to cart
Added