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

Domain, D omain A community will be just a group of friends without th...

D omain A community will be just a group of friends without the commitment to the domain. A domain is not just the group of people with connections but it is an identity which

Outline various steps of the policy analysis process, QUESTION 1 Policy...

QUESTION 1 Policy implementation is the most critical stage of the policy process. Critically analyse some of the main constraints that hinder the implementation of public poli

Six sigma - cynics view, Six Sigma - Cynics view The Six Sigma has take...

Six Sigma - Cynics view The Six Sigma has taken on the life of its own. The cynics might see it as "the next big thing" which will fade as soon as the new buzzword will come al

Environment and natural resource management, discuss merits and demerits of...

discuss merits and demerits of common property regimes and open access property regimes

Evaluation of data, Evaluation of Data : The historical data  should b...

Evaluation of Data : The historical data  should be subjected  to  two  types  of  evaluation. External Criticism: Evaluation of data  is concerned with authenticity or g

Organisational Change, Question 1. Demonstrate the use of analytical tools ...

Question 1. Demonstrate the use of analytical tools to monitor the progress and the effect of change Question 2. Assess monitoring and measurement techniques to change within an o

Classification work - library classification, Classification Work: Lib...

Classification Work: Library classification is the work of translating the specific subject of a document into an artificial language of ordinal numbers. This will result in a

Briefly explain the key elements of tqm, Total Quality Management (TQM) is ...

Total Quality Management (TQM) is now practiced in business as well as in government, the military, education, and non-profit organisations. TQM is thus applied to any type of orga

Steps literature search, STEPS LITERATURE SEARCH  There are many point...

STEPS LITERATURE SEARCH  There are many points to consider in making an effective literature search. The first and foremost step is to ascertain the purpose, scope, depth and

Write short notes on cost plus fee contracts, Question 1 Fixed price contr...

Question 1 Fixed price contracts have a preset price that the vendor must adhere to in performing the work and in providing materials. There are different kinds of fixed price con

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