Expert answer:Research Design and t Tests How Are They Connected

Expert answer:Discussion: Research Design and t Tests: How Are They Connected?The best way to solidify your understanding of statistical testing is to actually engage in performing some data analysis. This week you will work with a real, secondary dataset to construct a research question, perform a t test, and interpret the results.Whether in a scholarly or practitioner setting, good research and data analysis should have the benefit of peer feedback. For this Discussion, you will post your response to the hypothesis test, along with the results. Be sure and remember that the goal is to obtain constructive feedback to improve the research and its interpretation, so please view this as an opportunity to learn from one another.To prepare for this Discussion:Review the Learning Resources and the media programs related to t tests.Using the SPSS software, open the High School Longitudinal Study dataset found in this week’s Learning Resources and construct a research question that involves a comparison of a means test.By Day 3Use SPSS to answer the research question you constructed and post your response to the following:What is your research question?What is the null hypothesis for your question?What research design would align with this question?What comparison of means test was used to answer the question (be sure to defend the use of the test using the article you found in your search)?What dependent variable was used and how is it measured?What independent variable is used and how is it measured?If you found significance, what is the strength of the effect?Identify your research question and explain your results for a lay audience, what is the answer to your research question?Be sure to support your Main Post and Response Post with reference to the week’s Learning Resources and other scholarly evidence in APA Style.
rsch_8210_week06_t_testscenarios.pdf

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Week 6
Scenarios
1. As an international development researcher, you would like to know African Citizen’s
perceptions about current levels of democracy. Your working hypothesis is that a
series of reforms have increased African views of the level of democracy today. You
do not have a good research design to compare attitudes before and after the
reforms, but know that leaders and development experts would like to see a value of
6, on the scale of 1–10. Using the data from the 2015 Afrobarometer, determine
whether perceptions about current levels of democracy statistically differ from a
value of 6. Please provide: a 1–2 APA style paragraph statement that furnishes an
answer to this question, note the relevant statistics, comment on meaningfulness
and include your relevant SPSS output.
2. As an international development researcher, you have already tested whether
perceptions about the current levels of democracy differ from a value of 6. Given
recent social change movements in North Africa, you now want to determine
whether there is a statistical difference in these perceptions between North Africa
and Southern Africa. Using the data from the 2015 Afrobarometer, please provide: a
1–2 APA style paragraph statement that furnishes an answer to this question, note
the relevant statistics, comment on meaningfulness, and include your relevant SPSS
output.
3. As an educational researcher, would like to know whether high school student’s
perceptions about mathematical utility changed between their freshman and senior
year. Each respondent is asked the same series of questions about the utility of
mathematics in their future during their freshman and senior year. These questions
are combined to form one variable of mathematical utility; higher values indicate
higher levels of mathematical utility. Using the High School Longitudinal Survey,
please provide: a 1–2 APA style paragraph statement that furnishes an answer to
this question, note the relevant statistics, comment on meaningfulness, and include
your relevant SPSS output.
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