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

Incident management and problem management, Question: (a) IT Service Su...

Question: (a) IT Service Support within the ITIL framework is divided in a number of processes. Compare and contrast the following processes: i. Incident Management and Prob

Links in information, Links in InformationTransmission Chain: i)  Sour...

Links in InformationTransmission Chain: i)  Sources of Generation: As discussed in Unit 1, the researchers and their employing oreganisations are responsible for generating in

Quality management plan, Q uality management plan The quality manageme...

Q uality management plan The quality management plan is to give guidance on how the quality can be checked on the project through the design reviews, the documentation, and th

What do you understand by the term organizational culture, Question 1: ...

Question 1: (a) Explain the meaning of ‘Authority', ‘Power' and ‘Politics' in the context of an organisation. (b) What are the strategies that are usually used by Manager

Identify the organizational sources of resistance to change, QUESTION 1 ...

QUESTION 1 Explain Intra-individual conflict with appropriate examples. QUESTION 2 Persons seeking compliance use certain tactics designed to tip the balance in their f

Need for project quality standards, N eed for project quality standards ...

N eed for project quality standards Project quality standard help the organisation in defining specific measurable objectives. The objective tells if the goals are being met a

Steps in developing observation schedule-checklist, Steps in Developing Obs...

Steps in Developing Observation ScheduletChecklist: i)  The first step is to select the aspect of behaviour to be observed. We cannot notice everything that happens and we can

Define experimental method, QUESTION 1 Write short notes on the followi...

QUESTION 1 Write short notes on the following (a) Observation method (b) Pavlov's classical conditioning (c) Experimental method (d) Reinforcement QUESTION 2

Development of library resource sharing network, Development of Library Res...

Development of Library Resource Sharing Network The development of library networks is the result of computerisation of catalogues and bibliographic databases and the developm

Reasons for quality improvement, R easons for quality improvement The ...

R easons for quality improvement The Quality Improvement helps the organisation to continuously improve the quality of the product or the service. The quality improvement can

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