Construct validity

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…

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),…

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…

sample is a threat to the external validity of the study. It is important to note that this study does not represent a homogenous group. The sample is considered to be a convenience sample and cannot be echoed as a representative of the Latino immigrant community. Overgeneralization needs to be prevented because the sample does not represent an entire community. Therefore, the lack of generalization is a threat to external validity. However, the studies external validity can be adequate even if…

with the fact the media article does not tell us how the participants are being operationalized . External validity is low because of the lack of information on how the study was conducted. We did not know the operational definitions, conceptional definitions or the specific variables being studied, without that information how can one replicate the study to another sample. Conclusion validity is another cause for concern due to the fact the author of this media report did not state any big…

These are set issues that are always at heart of external validity, and that will set the tone for trustworthy results that can play a key role when sharing certain thoughts or opinions. Validity can be divided into two; external and internal validity. Internal validity refers to the consistency of variables at an internal level that whether the results represent the claims provided while external validity refers to evaluating a sample that is far away or not associated with sample…

1. Name and describe at least 5 threats to validity (ea. threat accurately described is worth 2 points up to a possible 16 points). History threat- This occurs when the study outcome is affected by some historical event. If a specific event or chain of events does transpire during the time when a treatment is administered and it affects the observations it is a threat to the internal validity. Often times there is no way of determining if the historical event(s) or the treatment accounts for…

Research has stated that animals must be exposed and frequently involved in intense social interaction for facial recognition to occur. However, recent research has suggested that orangutans can differentiate between individuals with much less interaction required. The orangutans spend the majority of their time alone. It is estimated they spend 5% of their time associated in social situations. Additionally, very little is known about how the orangutans recognize faces in specific situations…

issue of generalizing results from WEIRD participants to other populations arises. As we learned in Dr. Cheung’s class, this privileged demographic represents only about 12% of the world’s population, therefore limiting the potential for external validity, as it is a non-representative sample. In discussing the recruitment of participants, this also calls into question their other method of recruiting test subjects: online advertisements. This recruitment led to sampling bias, in which some…