Internal Validity And External Validity

An internal analysis’ purpose is very similar to that of an external analysis. Both are essentially developed to assist an organization build a successful strategy. Where they differ is that the external analysis focuses on the influential external elements; an internal analysis focuses on the internal forces. An internal analysis can unquestionably assist an organization drive up the profits aligning with internal matters. First, it is important to recognize what an internal analysis entails. In the course of this paper we will be looking into the key components that comprise this analysis. These components are StilSim’s value-chain, resources, core competencies, stakeholders, and finally their mission and vision.

Internal vs. external – Internal – is the mental struggle arising from opposing demands or impulses. External – that is a conflict between the character and someone else or the character and a conflict between the characters self.

Internal validity is isolating certain variables to determine how well an experiment goes. In your example, we are determining the link between sleep and a decrease in grades. An internally valid conclusion would be that more sleep equals better grades and less sleep leads to a decrease in grades.

EX: Using 3 students to see if the new “finger pointer” is effective to increase reading fluency.

unknowing that they would undoubtedly be the teacher in the experiment. They were assigned to

Internal validity of this study included data collection process and student personal interest in education. For example, students may have scored in exam because they concern about their own education. Reliability of this study instrument has not been tested. This is the first time this group will have this survey. There is no former survey to use as a standard to see if there are many changes.

Evaluating human services is a task that can be very complex. People can have different interpretations of the same event. Another concern is that people are not always honest. Therefore, human services will gain from effective, high quality evaluations of data collection methods. This requires that the data collection methods supply accurate and dependable information. This paper will define and describe 2 concepts of measurement known as reliability and validity,-provide examples and supporting facts as to how these concepts apply to data collection in human services, and evaluate the importance of the validity and

During this naturalistic observation I did not let any of the students know that I was watching them for an experiment, making my findings much more realistic in the end. I had each class for fifty minutes apiece. During those fifty minutes I looked at how often the

External validity refers to the degree to which the results of a study can be generalized to other individuals, setting, and times.

The dependent variable in this study is the test scores of the students who use the learning approaches. The independent variable is the application of multimedia materials when teaching the content to the students along with the amount of time that they get exposure to the multimedia presentations. In this particular experiment, it is more relevant and correct for the instructor to utilize a between-subject design instead of a within-subject design. The between-subject design allows for the administration of the same information to all the subjects in both groups at once and only once (Shuttleworth, M., 2009). If the within-subject design were applied, then the students would be exposed to the same content twice, which could possibly cause them to earn higher scores on the second test, which would invalidate the data since students could recall some of the information from the first test (Shuttleworth, M., 2009). Now that the basic experimental design is understood, it is time to discuss the specific details of the experiment. To conduct the experiment in the most unbiased way, the students in a classroom must be randomly selected for the study and randomly assigned to different groups of the design. Random assignment means that every selected student has the same probability of being placed into either one of the groups. The control would be the group that utilizes the original textbook approach. On the

Validity refers to that measuring tool or approaches can accurately measure things needed to be measured. It can be considered as an extent that measured results reflect investigative contents. Measured results more tend to be identical, validity will be higher, vice versa. Guba and Lincoln (1981) argued that whole social research must include invalidity in order to acquire worthwhile data within both the rationalistic paradigm (quantitative research) and naturalistic paradigm (qualitative research). Some factors can determine the level of validity, which include bias, construct

My reasoning for finding new participants is so that there is no carry over affect from the older participants. For example, the older participants might want to change how they played the video game this time from the last time. The students who spent more time driving around would maybe start doing more violent acts this time around simply because they were bored of their old ways. Therefore, in order to have no carry over effect at all, I will find new participants. In my experiment room, I will measure three different distances away from a television using measuring tape. The distances will be then marked on the ground with tape. The distances I will measure are one foot, five feet, and ten feet. I chose these three different distances because one foot away from the television is extremely close, five feet away is an average distance people sit away from a television, and ten feet is a farther distance away. The sixty participants will be randomly assigned to the distance they sit from the television (1, 5, or 10 feet away), and then will be shown five minutes’ worth of cop-killing videos. As soon as the videos are over, they will be told to play Grand Theft Auto with no directions of how to play, just like the last experiment. Just like the Quasi-Experiment, I will record the television while they play GTA for an hour and record

The experiment consisted of three individuals. The individuals filled the roles of the authoritative role, the Teacher, and the Learner.

The external validity refers to the ability of whether or not a generalization can be made for the entire population. External validity is increased by an experiment that reflects reality. There are three major threats to the external validity of a research, people, time and places. The external validity will be guaranteed by slightly altering the places and time frame of this research (Patzer, 1996).

While conducting the research the researchers did two experiment. In both the experiment the researchers subjected undergraduates of two different university each time. The students received course credit for their time in both the experiments. The researchers wanted to see if they could implant false positive belief in the subjects regarding a specific food item (asparagus) as children. Asparagus was chosen as a food item because it is a healthy vegetable with rather sophisticated taste, and so many most children would not like it immediately. In experiment 1 the researchers wanted to see if they were able to plant false belief about asparagus in the subject and see if the false belief had effects on the subjects later such as increased likeliness towards asparagus, willingness to eat asparagus in a restaurant setting and also memory or belief of the people eating asparagus as children. After experiment 1 was conducted, researchers wanted to know if the pictures of the asparagus seemed more appetizing or