Briefly describe the study, state the design of the experiment, present the data, and provide a citation for the study. Students will analyze this data for Assignment #5 (Analyze and interpret the results of an experiment) in Week 7.
A4 and A5 Instructions:
State the type of experiment involved and describe the design of experimental in terms of X’s to represent the treatment variable(s) and O’s to represent observations or measurements.
If the sample was split into two or more groups then formulate your design of experiment accordingly. Clearly label the groups in your design of experiment.
Indicate if randomization was utilized by using the symbol R in your design.
State what Xs and Os represent in the design of your experiment.
For count (frequency) data in a crosstab, if the cause variable is in rows and the effect variable is in columns, then it is appropriate to compare column proportions across rows.
Think in terms of the statistical test that you will perform on the data in your experiment. The measurement scale of your variables (nominal, ordinal, interval, or ratio) will determine the test statistic to be utilized to analysis your data for Assignment #5.
Assignment #4. (example) Formulate the research design and present the data of an experiment. An example is given below for students to follow to write their own reports.
In an experiment involving 2,260 young people between the ages of 12-15 years, the participants were randomly given two doses, three weeks apart, of either a placebo or the Pfizer-BioNTech’s Covid-19 vaccine at the start of 2021 (Park, 2021; Palka, 2021). The results of this double-blind study were reported on March 31, 2021. We formulate the research design and present the data for this study.
1) Research Design – A true experimental design: Pre-test-Posttest Control Group Design.
Group 1: R O1 X1 O2 X2 O3
Group 2: R O4 X3 O5 X4 O6
E = (O1 + O2 + O3) – (O4 + O5 + O6)
Where:
X1 and X2 are vaccine doses give, three weeks apart, to individuals in Group 1, the experimental group.
X3 and X4 are placebo doses given, three weeks apart, to individuals in Group 2, the control group.
O1, O2, O3 are the number of Covid-19 cases observed in the experimental group before and after each vaccine dose.
O4, O5, O6 are the number of Covid-19 cases observed in the control group before and after each placebo dose.
No Covid-19 cases were observed before the first dose and before the second dose of the vaccine so O1 = 0 and O2 = 0.
No Covid-19 cases were observed before the first dose and before the second dose of the placebo so O4 = 0 and O5 = 0.
Therefore, the experimental effect, E = O3 – O6.
This was a double-blind study.
The Pfizer-BioNTech’s Covid-19 two-dose vaccine data on young people ages 12-15 years (Based on measurements on March 31, 2021)
No Covid-19
Covid-19
Total
Two-shots of Vaccine (3-weeks apart)
1,130
0 = O3
1,130
Two-shots of Placebo (3-weeks apart)
1,112
18 = O6
1,130
Total
2,242
18
2,260
References
Palka, Joe (March 31, 2021), Study Shows Pfizer COVID-19 Vaccine to Work In Young People Ages 12-15. NPR. Retrieved from https://www.npr.org/2021/03/31/983157333/study-shows-pfizer-covid-19-vaccine-to-work-in-young-people-ages-12-15
Park, Alice (March 31, 2021), “Pfizer-BioNTech’s COVID-19 Vaccine Works for Teens, According to a New Study,” Time. Retrieved from https://time.com/5951361/pfizer-biontech-covid-19-vaccine-teens/
Schindler, Pamela (2018), Business Research Methods. McGraw-Hill.
Assignment #4 Instructions. Look at the research design and data of a study given above. For your assignment #4, find another study that utilizes an experiment then formulate and present its research design and data. Paste your Assignment #4 reports here by 11 p.m. Saturday July 31, 2021, then comment on two other students’ reports in this forum by 11 p.m. Sunday August 1, 2021.
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