Reliability - characteristics of research tools, Other Management

Assignment Help:

Reliability:

Refers  to  the accuracy  and consistency  of a measuring tool. A measure is reliable when  an  individual remains nearly  the  same  in repeated measurements. Reliability  is measured by reliability coefficient  and  the estimation  of rkliability  can be  done statistically. How to estimate  the  degree  of reliability?

a)  Coefficient of  Stability  shows consistency of performance  on  a test  over  a period  of  time. It is based  on  the correlation between performances on initial test and retest after  a distinct interval. That  is,  it  involves repetition of  the same test. A  test may  be  reliable even though  it may  not be valid. A  valid  test  is usually reliable. 

b)  Coefficient of Equivalence  shows consistency of performance on different forms  of a  test. It  is based  on the correlation between performances on the different .forms administered at nearly the  same time. That &,  a second equivalent  form of  the test is  administered. 

c)  Coeflcient of Internal Consistency  shows consistency  of performance  on different  parts or items  of  the test taken at  a  single  sitting. This  coefficient is usually computed  by  "split-half'  correlation (e.g. Sperman-Brown formula), or by  using Kuder-Richardson formula. That  is,  the analysis involves subdivision of the  test  into  two  or more  equivalent fractions.  


Related Discussions:- Reliability - characteristics of research tools

What is fibre, Question 1) What is fibre? Explain classification of natura...

Question 1) What is fibre? Explain classification of natural fibers Question 2) Narrate the characteristics of Polyester fabrics Question 3) Write short notes on c

How does vocational choice take place, QUESTION The major psychometric ...

QUESTION The major psychometric preoccupation of vocational psychologists has been in the development of interest scales. Among the well-known tests are The Strong vocational i

Disciplines and subjects - classification terminology, Disciplines and Subj...

Disciplines and Subjects - Library management: In a modern library the arrangement of documents is usually by subject. Thus, subject is the characteristic of division for arra

List the factors on which the location of an mnc depends, Question 1 When ...

Question 1 When you establish an export firm there are various regulations which have to be followed. List the steps in formation of an export import firm. Describe the procedure

User approaches - need for catalogue entries, User Approaches   We have...

User Approaches   We have seen the purpose and functions of a catalogue. By using a library catalogue we can find out the various documents available in the library, without ph

Network configurations - cd rom network, Network Configurations   The b...

Network Configurations   The basic components of a single CD-Rom workstation are a microcomputer and a CD-ROM drive. A printer will be necessary if you want to obtain a paper c

Different types of hospitality offering businesses, Question 1: (a) Sho...

Question 1: (a) Show what is meant by the managerial environment? Illustrate your answer with specific examples using both internal and external environmental influences within

Answers Please, Question 1 of 16 4.0 Points Six (6) samples of size five ...

Question 1 of 16 4.0 Points Six (6) samples of size five (5) were used to collect the data presented below: sample number 1 2 3 4 5 6 sample mean (x-bar) 8.0 8.1

What are the main styles of negotiation, Question 1: What are the alter...

Question 1: What are the alternative ways in which a decision can be made that affects the parties involved? In what ways will negotiation be seen as a tactical contest?

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd