Null hypothesis

In response to the high prevalence of bullying victimization, Bell, Raczynski, and Horne (2010) designed a study to examine the potential of the Bully Busters program to prevent and counter bullying behavior. A central belief underlying the program is that bullying and aggression stem from a lack of social skills and can be addressed by raising awareness, disseminating knowledge, and enhancing the ability of teachers to deal with in-school occurrences. This, in turn, can lead to positive…

resources available in the Campus Lake? Population Ecology Experiment Null Hypothesis: The presence of Blue-Green Algae will not have an effect on the Chlamydomonas population. Alternative Hypothesis: The presence of Blue-Green Algae will have an effect on the Chlamydomonas population. Community Ecology Experiment Null Hypothesis: Nitrate concentration will not have an effect on chlorophyll levels in the Campus Lake. Alternative Hypothesis: Nitrate concentration will have an effect on…

expressed by many parties involved. However, research examining parents’ attitudes toward food advertising is limited. Due to there being limited data available, the authors give reason as to the purpose of the research adequately. Bakir and Vital’s null hypothesis is “Parents’ attitude toward food advertising will be positively related to their ethical judgments of the food advertising targeted at children” and they state nine alternative hypotheses (2009). Methodology is broken up into a few…

The purpose of this study was to determine the presence of the social stigma of loneliness and how it presents itself in different races, which in this case included both White and Hispanic. This study used the two independent variables of race and loneliness state in order to create several characters, which were then presented to the participant. Race was operationalized by changing the name of the character to represent either a White or Hispanic person. Some examples of the names used…

sexual attraction. They hypothesized that males who come across an attractive female while experiencing a strong emotion such as fear will find the female more attractive than by males not experiencing a strong emotion, which is also the alternative hypothesis. The independent variable is a strong emotion such as fear. This was operationalized by participants being on an unsteady bridge that would tilt and sway causing a fear of falling. The bridge had very low handrails made of cable and was…

sentence was supported by nonexistent source, questioning study reliability and credibility • Comparison of Australian and American BMI, without taking into account cultural differences • Hypothesis do not predict the outcome of the study and multiple unnecessary secondary hypothesis (can be compacted) • Hypothesis written as questions. • Aim is poorly written The information in the introduction provides justification for research to be conducted however, the very first sentence expresses…

I hypothesized that segment one, the part containing the head and mouth, would be the most susceptible to such stimulation. The results of my experiment support my hypothesis. The reason why segment one is the most sensitive is because earthworms don’t have eyes so they need to use mechano and photoreceptors to perceive light and touch this is known as dermal light sensitivity. Dermal sensitivity is also the reason why…

important to look for prerequisites that cover the whole landscape and demarcate it into sensible divisions. Reiss (2015) argues that a theory of evidence should be informative about how to gather evidence and when to be justified in believing a hypothesis on the basis of evidence in non-ideal scenarios as well as ideal ones. He puts forward four desiderata for a theory of evidence. It should: (1) be a theory of support; (2) be a theory of warrant; (3) apply to non-ideal scenarios; and (4)…

statistical tests used were both a bootstrap test and a randomization hypothesis test for a correlation. Figure 1. Scatter plot and summary statistics from the sample data. This display has the time in seconds on the X-axis and the distance in miles on the Y-axis. Then, to examine if the distance traveled has any impact on the speed of the athlete, a randomization hypothesis test was completed. The hypothesis states if a team travels farther to a meet, they will run faster.…

Answer the following question: Define the term statistical hypothesis. A hypothesis that is testable on the basis of a process being observed through a set of random variables. Define the terms null hypothesis and alternative hypothesis. The term null hypothesis refers to a general statement or a default position in which there is no relationship between two measured phenomena or no difference among groups.In other words, it is a simple hypothesis that is related to a contradiction to a theory…