Criterion validity

Validity looks to see if a test measures what it is supposed to measure and if the test does not then it is not valid and should not be used. There are numerous types of test validity discussed in this chapter, but the one that stuck out to me the most was face validity. Face validity just looks to see if the test looks like what it is supposed, but it is important to remember that just because…

ADHD, validity o Articles I narrowed down  Psychometric Properties of the Vanderbilt ADHD Diagnostic Parent Rating Scale in a Referred Population (Wolraich et al., 2003) • Internal consistency and factor structure = acceptable, consistent with DSM-IV • Good reliability  The Psychometric Properties of the Vanderbilt ADHD Diagnostic Parent Rating Scale in a Community Population (Bard et al., 2013) • Complicated statistics • Reasonable reliability, construct validity, criterion validity  Using…

Brief Summary of study In this article, the authors conducted an experimental study to examine the effect of three different interventions on reducing the domestic assault. The three interventions were arrest, ordering the offender to leave the house, and providing advice. These three interventions were given randomly to 33 officers (some of them did not continue the study which made the researchers to gather more officers) who attended workshops to be prepared to this study. After the…

Internal validity addresses causal relationships between factors. Focusing on the test and having strong control over the environment can produce a more detailed understanding of the responses (Moskal & Leydens, 2000). For example, the survey must be given in an…

In addition to your assigned article you will need to use your textbooks or other resources to adequately talk about the specific aspects of having validity in a research study. Validity is affected by low statistical power. As stated above, a power analysis was unable to be conducted for this study. Grove, Burns & Gray (2016) state: Low statistical power increases the probability of concluding that there is no significant…

O’Brien and Ellsworth choose this design because it permitted an accurate internal validity by allowing casual inferences. The procedure begins with the experimenter randomly assigning participants to the two levels of the operational independent variable, next (uniformed of the final piece of chocolate) and last (informed of the final…

sampling was not applicable. It suggests that the participants were already willing to change. 2. Internal validity is the estimated fact about implications regarding cause-effect. It is only pertinent in studies that try to establish a causal relationship (KnowledgeBase, 2006). External validity is the degree to which the results of a study can be generalized to other situations and people. Validity is important because it observes research findings. If results from a study are not…

The news article did not capture some key details of this experimental study which can possibly lower the validity of the study. For instance, it did not report exactly how the participants were distributed into each condition. In other words, the article did not mention that participants were assigned to meditation sessions or nourishment sessions randomly.…

Attention-deficit hyperactivity disorder (ADHD), is diagnosed when children display persistent age-inappropriate symptoms of inattention, hyperactivity and impulsivity. Since ADHD is one of the most common (3% to 5%) childhood mental disorder, a lot of controversies debated whether behavioral therapy (BT) or medication alone (MM) would be more efficient as the treatment for ADHD (Arnold et al., 1997, p.865). In 1992, the Collaborative Multimodal Treatment Study of Children with ADHD (the MTA),…

The date was December 24th on a full moon night. At a cottage in the woods Malacki was telling a scary story. “Then the last survivor barely made it out of the house alive, but before she could get to the nearest town the monster caught up with and grabbed her arm. She was screaming at the top of her lungs and then silence fell in the cold night.” “Ok that’s enough storytelling for now so let’s go t-.” Leven suddenly stopped talking. “Did you hear someone screaming.” Booker said. “Stop scaring…