Random variable

Random mutagenesis was used to cause random mutations in the drosophila’s DNA. This was accomplished through EMS, a chemical that is known to cause random single-base mutations on the X-chromosome. After they obtained multiple mutated larvae, they used behavioral analysis to determine the responsiveness of each larva. As a control…

examine more than two variables at a time. Correlation studies, on the other hand, allow researchers to observe patterns that are not manipulated as they are in experiments. Correlations studies also only allow two variables to be observed at one time so that “the direction and strength for the association between the two variables” (Noba, 2014, p. 37) can be determined. As stated above, experiments allow researchers to intervene and change behavior by altering the independent variables and…

Business Research Method Assignment 1 Fathimath Shaaira, Cyryx Collage SECTION A Question 1: Case Study A1. i. Research is one more, afresh. Research is finding information about particular thing that you have to do and process of asking question and answering by a survey or experiment in an organized way. For example, you have to do a project on international company for that project you are finding all kind of information about the particular company and sometime we have to go to the company…

to compare them to the prison guards and the prisoners” (Fuller, 2005). The independent variable was the condition the participant was put into at random: either prisoner or guard. This is the independent because it was what caused the effect of the dependent variable. It was the role the participant was given that controlled by the experimenter since it was given to them randomly. The dependent variable is the way in which the participant behaved in the role, because the behavior was caused…

police work as well as from female-dominated workplaces: nursing and reception work (INSERT CITATION FROM WEBSITE). By using this sampling frame, it should represent a variety of different women socio-economic classes. Women were recruited based on random selection based on age and occupation within a given company. Participants were compensated $25 dollars for their participation. To help aid in involvement a…

information that was needed for this experiment. The limitations on external validity were the need to explain the relationship between complex span tasks and the DSB. The strategies that were used to control for extraneous (confounding) variables were by checking for random answering patterns between…

Furthermore, university enrolment rate, government expenditure on R&D, high-tech market, patent and scientific journal published are statistically significant in the fixed effect model. The coefficients of these variables as a measure of national innovation system are positive and statistically significant at the 1% and 5% levels of significance which implies that national innovation system as a whole has a positive effect on economic growth in BRICS economies and in consequence spurs their…

when forming expectations about any variable, people will make optimal use of the available information. This information includes the actual value of certain variables and, more widely, the nature or structure of the world in which people are operating. Let the value a variable ‘y’ takes in period t depend upon, or be a function f (.) of, the value of other variables, x1, x2 and x3 have taken in some previous periods. But let y also be influenced by a random event, u. So the true nature of the…

questions that could potentially be addressed by longitudinal research, but could not be addressed by cross-sectional research (6 points) Longitudinal research studies the long-term repeated observation of specific variables. Much differently, cross-sectional research is observes specific variables at a specific time period and not again. There are several developmental psychopathology questions that could be addressed by longitudinal research but not cross-sectional research studies. The…

Two variables from the original data were retained for analysis. These were Wage (hourly wage of the person) and College (binary variable indicating whether or not the person had a 4 year college degree, 1 for yes and 0 for no). The random sample contained the hourly wage data for 148 college graduates and 52 non college educated people. The dataset containing the random sample of 200 observations used in the analysis is attached as a…