Reliability

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    Test-Retest Reliability

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    Test-retest reliability can be a useful assessment for a survey instrument. “Test-retest reliability provides information on how consistent a measure is when it is administered twice in a relatively short time frame. The appropriate length of that time frame will vary with both the instrument and the target population” (Krysik & Finn, 2013, p.266). In addition, the interval needs to be extended so that the subject cannot recall the answers and short enough to make sure that no changes occur in the variable that is being measured. If the results between the two tests are similar, the instrument has good test-retest reliability. Similar to interrater reliability, “researchers can calculate a correlation coefficient using the two set…

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    Psychological assessment measurements are appraised based on two key measurement constructs: reliability and validity. Reliability of an assessment denotes how consistent the test scores are after repeated executions of the assessment. The reliability of an assessment is necessary and is a foundation to build upon for validity. Validity is the second key measurement construct that deals with the degree to which “the evidence exists to support the various inferences, interpretations,…

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    Charater Reliability Paper

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    Reliability, or precision, can be defined as the degree to which a measurement is able to be reproduced with nearly the same value when evaluated several times with no change to the underlying trait being measured. Inter-rater reliability is “ the consistency with which two or more judges rate the work or performance of test takers.(Kelley & Littenberg, 2015). Reliability is often a misconstrued measurement idea. However, the reliability of a test scores bears on decisions regarding the…

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    Reliability Table 4.5 Reliability Test Variable Cronbach’s Alpha N of Items Remark Brand Awareness 0.825 5 Reliable Brand Association 0.757 3 Reliable Perceived Quality 0.763 4 Reliable Brand Loyalty 0.890 5 Reliable After validity test, this is the result of the reliability test. The requirement to be reliable is the Cronbach’s Alpha must be more than 0.7. As seen from the table 4.5 the Cronbach’s Alpha of every variables are more than 0.7 which are remarked as reliable. To be explained, the…

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    What is the importance of validity, accuracy, and reliability in behavioral measurement? Validity measurement is important, because it measures the target behavior, measures the duration of the target behavior and any questions that are directed towards that behavior. Validity also makes sure the data was tracked at appropriate times and are relevant to the target behavior(Cooper, Heron & Heward, 2007, p. 103). If none of these elements add up, then the resulted data is compromised, therefore…

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    Validity and Reliability of Selection Tools The four selection tools were also examined to depict their reliability and validity. Reliability can be defined as the “degree to which an assessment tool produces stable and consistent results” (Phelan & Wren, 2016). To have reliability, the selection process should be based on the same criteria. Validity is described as the amount of accuracy measured by an assessment tool (Phelan & Wren, 2016). Validity cannot exist without reliability, as it…

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    When discussing quality in the research it is often measured in terms of validity and reliability, these two are not independent and reliability is usually contrasted with validity. Reliability has to do with producing the same stable and consistent result each time the research is repeated. Reliability is also defined as when results are consistent over the time and an accurate illustration of subjects on the research and if the results can be produced over again under the similar methodology.…

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    post-concussion scores of cognition compared to baseline scores and follow-up and comparison across the control and experimental conditions, with higher scores indicating higher levels of cognition. If the test is reliable, I predict that test-retest reliability and Cronbach’s alpha will be high and positive. If the test is valid I predict that (a) individuals in the control condition will have higher levels of pre-test and follow-up test scores compared to the experimental group, and (b)…

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    Criminal profiling refers to a tool implemented in analytical psychology. Just like any other scientific tool, criminal profiling has its disadvantages. The disadvantages influence the validity, reliability, and utility of the technique, making it to be classified as a tool rather than science. For one to be conversant with the validity, reliability, and usefulness of this tool, understanding its definition is crucial. Criminal profiling refers to the procedure of categorizing personality…

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    Case Study Of Demographics

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    Influences on reliability include: the test itself; how the test is administered and scored; and the test taker. All of these items can cause errors. The TSI reports a reliability rating on each scale and overall reliability of .93 for a combined sample of 3,401 teachers across the US. Kourmousi, Darviri, Varvogli, & Alexopoulos (2015) adapted the TSI to a Greek version and ran a comparison against the Perceived Stress Scale in which they were able to obtain similar results as well as show…

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