Validity

Reliability and validity are important factors; they are key factors for having a good test. Reliability is when your test is consistent, whereas validity is the accuracy of your test. You can have a reliable test, yet not valid, but you cannot have a valid test without it being reliable. Here is an example of how reliability and validity work together. Let’s say your scale is 5lbs off, if you weigh yourself it will consistently weigh you 5 lbs off, this is reliability. Validity is your test…

necessary to consider the validity and reliability of the study being described. Validity means that a tool measures what it sets out to measure. There are several steps of validity that provide evidence of the quality of the study. Internal and external validity relate to the overall study design. Internal validity refers to the extent to which the design of a research study is a good test of the hypothesis or is appropriate for the research question. External validity refers to whether or…

However, negatively scored items were used sparingly (see Appendix B). Validity and Reliability An instrument is valid when it measures the construct it was designed for, and reliable when an instrument can consistently produce the same results over time, across different situations (Field, 2003). Content validity is an evaluation of the relationship between the items and the construct being measured (Cook & Beckman, 2006) and can be done in…

and Schrank (2014) states the WJ IV is based on the theoretical foundation from the Cattell-Horn-Caroll theory of cognitive ability and evidence to support the interpretation of the WJ IV, Validity Content was addressed using the master-test and cluster-content according to the CHC theory. The Content validity refers to the learning area measured by the test. In addition, the CHC theory and research were the “basis for the overarching test battery design blueprint” (LaForte, McGrew, & Schrank,…

similarities between the behavior shown by the animal model and the particulars symptoms of the human condition (Geyer and Markou 1995; Moreau 2002; Lyon 2004) .The face validity of animal model of depression is a determination of the models capability to replicate core symptoms of the disease (Mitchell and Redfern, 2005). In using the face validity of animal models of depression, anhedonia as a result assumes an important position. Anhedonia is also a most important symptom of psychosis. In…

A panel of experts is needed to review the instrument, and determined the validity and reliability. The group discussion was an example of panel of experts, who determined the content of validity and reliability between the items composing in the instrument. The reliability was conducted before the expert panel review, which for this assignment were my classmates. The panel of experts…

Conclusion Validity 4. External Validity The first type of validity is Internal Validity. “Internal Validity is the approximate truth about inferences regarding cause-effect or causal relationships” (Trochim, 2006). You would not use Internal Validity for an observational study but Internal Validity would be appropriate to assess a social program’s effectiveness. You want to know that your program is successful…

history of suicide attempt, past psychiatric hospitalization., history of physical or sexual trauma, current medical problems, history of hallucinations, paranoid ideation, drug abuse, alcohol abuse, and arrests (Jenelle Slavin-Mulford, External Validity of the Personality Assessment Inventory (PAI) in a Clinical Sample, 2012). The evetns were significant and scored as such because the degree of outcomes, categorized as positive (education, employment, or marriage), psychiatric severity…

The two assessments that were administered to the client were the Gambler Addiction Index (GAI) and the Coping Response Inventory Adult Form (CRI). The purpose of the GAI is to measure the severity and intensity of an individual’s gambling addiction. In addition to, the assessment measures the strong impulses an individual has to gamble and the harmful consequences of gambling. The rationale of selecting this assessment for the client, Alan, was because in the previous session, Alan mentioned an…

The next validity to check would be the external validity. The definition of external validity by Paul C. Cozby and Scott C. Bates (2015), in their book Methods in Behavioral Research would be to see if the study can be generalized and applied to other populations. The study was mostly conducted on Caucasians, however, the studied would still be able to be applied to others since it is dealing with the effects of parenting which can be applied to all (Cozby & Bates 2015). The final validity is…