Thetypical method of finding out on whether the mean differences in a DVclass is performing a one-way analysis of variance. The processincorporates three continuous DV classes. The variability between thegroups is assessed assist in determining the link between backgroundnoise and grades. The links turns out to be of importance if at leastthe two groups turn out to have means that are independent of each(Led Nicky, 2011). In this line, the paper focuses primarily on theanalysis of “One way variance” in statistics.
Independentvariable in Mary`s case is the degree level of the background noise.In one way variance analysis Mary is obliged to have in place onevariable that is more of independent (Bazuin, 2012). The independentvariable should have at least three levels of background noise. Thelevels in the background noise should extend from low backgroundnoise level, to medium level, and to high background noise level.
Student`sperformance grades could run from zero to one hundred for the leastgrade and the highest grade achievable by students respectively. Thestudent grades should be considered as the dependent variable as theyare affected by the level of noise as supported by the nullhypothesis. Particularly, in this case, the student’s grades shouldhave one score in continuous assessment measurement. The sixthgraders in a math lesson are the particular dependent variable(Withani, 2012). The dependent variable has to be on a scale that iscontinuous in the case of ANOVA. The DV should be measured in findingout whether the mean of the grades (dependent variable) is equal forat least two or are independent clusters.
Inconclusion, ANOVA tests the difference between the mean in at leastone pair. It is used with at least three independent samples. Onanother hand, independent t-test samples are usually used with twosamples. Finally, two-way ANOVA can be utilized with two samples.
Bazuin,(2013). How the races get it wrong: the story of the Americancommunity survey and a small, inner city neighborhood. AppliedGeography, 45, 292-302.
LedNicky. (2011). analytically measuring gains in the test andevaluation process through capabilities-based analysis. NavalPostgraduate school Monterey ca dept. Of operations research.
Withana,(2012). The effectiveness of software development training programsfor the return on investment in Sri Lankan it industry (doctoraldissertation, Sri Lanka Institute of information technology).