Concurrent validity

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…

overgeneralization. A potential threat to the internal validity of this study was the short amount of time between the start of the study and the onset of the participant’s LCVA. The participant’s performance on tasks within the study might have been influenced by spontaneous recovery. Other similar studies investigating the use of SPT for AOS utilized participants that were at least one year post-onset to control for threats to internal validity. External validity is also compromised because…

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),…

1. What background information should a recruiter have before beginning to recruit job seekers? As a job seeker in today’s competitive market, you should have a few things before heading out in search of a new recruiting job. Following these three tips can help you in getting your new job. 1- Business cards – It is important to have business cards available to pass out anytime. Have them on you at all times. You never know when an opportunity will present itself. If you are not presently…

A study has shown that Internet appearance exposure and magazine reading exposure were correlated with higher internalization of thin ideals, appearance comparison, weight dissatisfaction, and drive for thinness in adolescent girls of mean age of 14.9 years. (Tiggemann & Miller, 2010). As mentioned in lecture, an average American watches 5.13 hours TV per day. (K.Dalrymple, personal communication, October 26,2015). This data shows that television is a dominant media that plays a great deal in…

There are two different groups of participants in the study who were chosen for the study arbitrarily. The goal of the study was to find the best way to help students learn better. The researcher chose to use quizzes that were given on a weekly basis. Since the quizzes are only a very small part of the students ' final grade, it is more logical to conclude that the investigator would use the exams that were given to the students as a better measure of student learning than their marks on the…

and whether or not “inappropriate elements are included in the indicator.” Although content validation is an “important contribution” to measurement validity, its chief limitation is that “alone it is incomplete, for two reasons”: “first, although a necessary condition, the findings of content validation are not a sufficient for establishing validity” and second “the trade-off between parsimony and completeness that arises because indicators routinely fail to capture the full content of a…