StudentShare solutions
Triangle menu

Reliability and Validity - Assignment Example

Extract of sample
Reliability and Validity

For the diagnosis to be termed accurate, the features identified have to be same every time if the test is to be termed reliable. This is measured by a correlation between the two test outcomes over all the participants. This method expresses the generalisability of the test scores over different test occasions by assessing stability of the test outcomes (Hempel, 2005).
Hempel (2005) explains that this method of testing reliability varies with the type of tests, i.e. ability or traits and attitudes or states assessment. In both cases, repetitive responses based on previous memory is a high possibility thereby giving incorrect measures of reliability. Secondly, the traits tend to change with time, and this would depict low reliability measure, which is again incorrect (Garb, 2002). In such cases, the time period between the tests needs to be recorded appropriately in order to obtain accurate reliability measure. In case of validity, the test should be able to measure what is intended to be measured with minimum or no possibilities of change in behaviors. Reliability of the test decides the amount of correction and incorrect decisions that are made as an outcome of the test. Therefore, reliability is necessary for confirming validity. At the same time, validity of results obtained from this method is higher when the time gap is minimal; however, this minimum time varies with situation or behavior being ...Show more

Summary

Discuss the conditions under which each method is appropriate and or inappropriate. Explain the importance of reliability and validity.
Reliability of a…
Author : fpacocha
Reliability and Validity essay example
Read Text Preview
Save Your Time for More Important Things
Let us write or edit the assignment on your topic
"Reliability and Validity"
with a personal 20% discount.
Grab the best paper

Check these samples - they also fit your topic

Validity, Reliability, and Accuracy
In addition, writing such an assessment upfront will alleviate the potential for problems down the road. Students may, for example, become frustrated if an exam is perceived to be unfair. Much time may be spent after the exam with students questioning the very integrity of the assessment itself.
5 pages (1250 words) Assignment
The concept of reliability
The processes involved in constructing such test items that achieve their purpose is called test development (Breiman, et al, 2009). The degree to which the test gives a total representation of all social constituent is referred to as content validity (Icove et al, 2005).
5 pages (1250 words) Assignment
Issues of Reliability and Validity of Data
Data collection techniques are basically systematic in nature. It allows one to follow a system of conducting the research and the information gathered can be analyzed by using different models of research. A research is valid if the sources generated for data collection are reliable and are done in a systematic way.
2 pages (500 words) Assignment
Validity, Reliability, and Accuracy
It is important that any assessment given in the classroom, no matter the topic or level, be valid, reliable, accurate, and as error-free as possible. This is essential not only to be fair to the
5 pages (1250 words) Assignment
Research study on treatment for acute otitis media
The sampling strategy eliminates bias by offering equal chance of an individual’s selection into a sample. Randomized sampling approach also separates researchers’ interest, in a particular sample space
1 pages (250 words) Assignment
Analyze the issues associated with sampling, validity, reliability and bias for both approaches
This paper analyzes issues associated with sampling, validity, reliability, and bias for both designs. Experimental research design aims at investigating causal relationships between variables and is
2 pages (500 words) Assignment
Construct Validity
Some responses are measured on ordinal scale while other are measured on a nominal scale. Construct validity is the level of accuracy with which a construct measures an element that it is
1 pages (250 words) Assignment
Peer response
What one wanted to clarify was the statement asserting that: “My understanding of these contracts is that they have a purpose as a tool of knowledge that cant be actually practiced, but more used for strategic planning.” One needed more
1 pages (250 words) Assignment
707 week 6
Observation involves seeing things in their natural occurrence for data collection and has such strengths as limited bias, currency of data, and independence
1 pages (250 words) Assignment
Data collection, reliability, and validity discussion
The study conducted worldwide searches of the keywords: larval therapy, maggots, debridement, antibacterial, antimicrobial, Lucilia sericata and chronic wounds (Blueman, & Bousfield, 2012). The study also accessed literature from National Institute
1 pages (250 words) Assignment
Hire a pro to write
a paper under your requirements!
Win a special DISCOUNT!
Put in your e-mail and click the button with your lucky finger
Your email
YOUR PRIZE:
Apply my DISCOUNT
Comments (0)
Click to create a comment