Another disadvantage regarding the validity of the analysis regarding gender was that the results between the two gendered groups were calculated based upon a mean, which meant that one or two respondents with scores could have a considerable effect, skewing the results in one direction or another. The two sample groups of 59 psychology students and 100 MBA students were relatively small and select as well. Using these populations is

Reliability & Validity For the lay person, the notion of personality is often derived from components of an individual's character or make up that has the ability to elicit positive or negative reactions from other individuals. The person who has a propensity for positive reactions from others is often thought to have a 'good' personality. Conversely, the person who tends to elicit not so favorable reactions from others may be thought

Reliability of Test Reliability is defined by Joppe (2002,p.1) as the level of consistency of the obtained results over a period of time as well as an accurate representation of the population under study. If the outcome of the study can be reproduced using a similar methodology then the instrument used in the research are said to be reliable. It is worth noticing that there is an element of replicability as well

Finally, internal consistency reliability looks at items in the same test, to see if they measure the same construct in the same way (Cherry, 2011, Reliability). However, all of these measures of reliability are useless if a test does not measure what it purports to measure. Validity looks at whether a test measures what it claims to measure. Only valid tests can be used to be accurately applied or interpreted

Reliability and Validity in Psychological Testing In any kind of academic and professional testing, it is important to obtain at least some degree of reliability and validity. Failing this, the tests cannot be applied for results that are consistent or usable in an academic setting, since they cannot be verified in terms of repeatability or in comparison to other results. In psychology, which is more often than not studied by

1. Why are reliability and validity important for assessment? How are content validity and criterion-related validity used to establish construct validity? Support your position. Assessment instructions, whether for measuring cognitive ability or intelligence, or for psychometrics like personality, need to be both reliable and valid; otherwise, their results would be meaningless. In fact, using unreliable or invalid assessment instruments could lead to distorted judgments and biased beliefs. The decisions made based