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

Construct a cedar eee analysis for an event, Question 1: You are to set...

Question 1: You are to set up your biggest conference room for a cocktail party for a renowned bank in Mauritius. The cocktail is scheduled to start at 19h00. However, the same

Business Improvement Strategies, Hi there i need help in case study assignm...

Hi there i need help in case study assignment. Thanks

Describe how you can enter tasks in ms project, Question 1 In order to inc...

Question 1 In order to include the cost aspects in the project scheduling, it is very much essential to first define the cost-duration relationships for various activities in the

Set up a cost control system, Question 1: Set up a cost control system ...

Question 1: Set up a cost control system for a newly established hotel. i) Explain how you would proceed. ii) What set of documentation you will require and wh

Shifting and reshifting books - library management, Shifting and Reshifting...

Shifting and Reshifting Books: In order to take away the monotony of appearance of shelf arrangement and to introduced an element of novelty,  books have to be reshuffled to

Improve public sector performance, QUESTION 1 A core concept in implem...

QUESTION 1 A core concept in implementing TQM is Deming's 14 points, a set of management practices to help companies increase their quality and productivity. List 7 points and

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

Closed loop, . Write a note on tracing a closed loop. What are the ch...

. Write a note on tracing a closed loop. What are the characteristic features of a closed loop?..

Inside and across boundaries - communities of practice, Inside and Across B...

Inside and Across Boundaries The Communities of Practice might exist within a business unit or stretch across the divisional boundaries and most of them cross the boundaries be

Short-term decision-making problem, A company manufactures and sells a sing...

A company manufactures and sells a single product. The variable cost of the product is Rs 2.50 per unit and all production each month is sold at a price of Rs 3.70 per unit. A pote

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