Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
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.
Change Order Management In previous section we learnt that incentives motivate and penalties keep a check for faults that occur in a project. In this section we will understand
Question 1: (a) Describe and illustrate the term ‘non ionizing radiation'. (b) In what ways will noise affect workers? (c) How will the effects of noise, as a hazard,
VALUE OF INFORMATION SERVICES: At the outset, it must be emphasised that there is no consensus of opinion among information scientists and professionals regarding the "concept
Lamination is construction by an over layering facet, just as one makes a sandwich by layering a vegetable over a layer of bread. According. to Ranganathan "when the basic layer is
Arrays and Chains: Isolates are arranged in what are called arrays and chains. ,An array is a sequence of coordinate (equally ranked) classes arranged in some definite order.
Demerits of dictionary catalogue: The alphabetical arrangement of entries in one sequence is at once the strength and weakness of a dictionary catalogue. The subject entries g
consequences of conflicts
P ractice Practice can be developed when the community keeps continuous interactions with the domain. The members of the community of practices are the practitioners. They wil
Size of library building in library management The size of the library building is determined by the number of clientele it is going tocater to (many subscription and public
Question 1: Mention and discuss three important codes of ethics established by the World Tourism Organisation regarding tourism development with respect to the facilities pr
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!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd