Reliability and Validity are important aspects of research in the human services field. Without reliability and validity researchers results would be useless. This paper will define the types of reliability and validity and give examples of each. Examples of a data collection method and data collection instruments used in human services and managerial research will be given. This paper will look into why it is important to ensure that these data collection methods and instruments are both reliable
Premium Validity Psychometrics
Reliability‚ Validity and Accuracy - what do they mean? (To be read in conjunction with an article originally published in Curriculum Support‚ Science‚ 2001 Vol. 6 No. 3) Reliability and validity are two terms that continue to cause problems for teachers and students. Students in Stage 4/5 are required to evaluate evidence for reliability and validity. In Stage 6 they are required to discuss and explain how they would improve the validity and reliability of a first-hand investigation. They could
Premium Measurement Scientific method Psychometrics
Reliability and Validity When examining the data they have collected‚ it is essential for researchers to determine to what degree is their data consistent. There are many methods by which researchers can assess the reliability of their instruments. Through different statistical procedures‚ researchers will evaluate the reliability coefficient to ascertain to what extent their data is consistent. The reliability coefficient is generally a numerical value between 0.00 and 1.00‚ where the coefficients
Premium Psychometrics Reliability Validity
VALIDITY AND RELIABILITY For the statistical consultant working with social science researchers the estimation of reliability and validity is a task frequently encountered. Measurement issues differ in the social sciences in that they are related to the quantification of abstract‚ intangible and unobservable constructs. In many instances‚ then‚ the meaning of quantities is only inferred. Let us begin by a general description of the paradigm that we are dealing with. Most concepts in the behavioral
Premium Psychometrics
there are different ways to estimate reliability‚ it is necessary to provide a definition for the word reliability.” Reliability refers to the consistency of a measure. A test is considered reliable if we get the same result repeatedly. For example‚ if a test is designed to measure a trait (such as introversion)‚ then each time the test is administered to a subject‚ the results should be approximately the same. Unfortunately‚ it is impossible to calculate reliability exactly‚ but it can be estimated
Premium Reliability Measurement Psychometrics
Reliability Analysis Reliability analysis is an important component of engineering work that draws on the areas of probability and statistics. As the name suggests‚ reliability analysis is concerned with the investigation of the failure rates of components and systems‚ which are typically represented as probabilities. Life testing is a general term used to describe the experimentation and statistical analysis performed to investigate failure rates. Probability distributions that are used to model
Premium Probability theory Normal distribution Statistics
Many Indigenous cultures have a person in their community that is respected as a healer‚ and a religious leader. This person has special privileges in the community‚ or tribe. Most anthropologists and religious scholars define a shaman as an intermediary between the natural and spiritual world‚ who travels between worlds in a state of trance. Once in the spirit world‚ the shaman would commune with the spirits for assistance in healing‚ hunting or weather management. Ripinsky-Naxon describes shamans
Premium Drug addiction Cannabis Drug
what is the difference between reliability and validity in what respects are they similar The real difference between reliability and validity is mostly a matter of definition. Reliability estimates the consistency of your measurement‚ or more simply the degree to which an instrument measures the same way each time it is used in under the same conditions with the same subjects. Validity‚ on the other hand‚ involves the degree to which you are measuring what you are supposed to‚ more simply‚ the
Premium Employment Identity theft Background check
Systems with the Use of Information Technology and its Effects on the Financial Statements Reliability: An Applied Study on Commercial Banks Ali Abdul Ghani Al-Laith Technical College of Management‚ Baghdad‚ Iraq [Abstract] The study aimed at identifying the importance of the internal control and its adaptation with the development of the use of information technology and its effect on the reliability of financial statements of commercial banks. The population of the study consisted of all
Premium Internal control Internal audit Auditing
Writing Definition Essay November 11‚ 2012 The word sexy has a universal meaning. People use the word sexy in many different contexts. There is no one-way to use to the word . Sexy people today are like Beyoncé and Chris Brown. We base a lot of what we call sexy on how celebrities look and dress. Being sexy can be a good or bad thing. Our world has transformed the meaning of the word throughout the years. Sexy can be defined as a way someone dresses‚ carries themselves‚ or feels. Sexy can
Premium Meaning of life Emotion