1 what is the purpose of conducting an experiment how does

Assignment Help Basic Statistics

Reference no: EM13382309

1. What is the purpose of conducting an experiment? How does an experimental design accomplish its purpose?
2. What are the advantages and disadvantages of an experimental design in an educational study?
3. What is more important in an experimental study, designing the study in order to make strong internal validity claims or strong external validity claims? Why?
4. In an experiment, what is a control? What is the purpose of a control group? Of single or multiple comparison groups?
5. What are confounds? Give an example of a design that has three confounds. Describe three ways to alter the design to address these confounds and explain the advantages and disadvantages of each.
6. What does "cause" mean and why is it an important concept in research? How are correlation and causation related?
7. You are a researcher interested in addressing the question: does smiling cause mood to rise (i.e., become more positive)? Sketch between-participants, within-participants, and matched-participants designs that address this question and discuss the advantages and disadvantages of each to yielding data that help you answer the question. Describe and discuss each design in 4-5 sentences.

Reference no: EM13382309

Questions Cloud

1 a create a set of 5 points that are very close together : 1. a create a set of 5 points that are very close together and record the standard deviation. next add a 6th point that

Exploratory data analysisa perform exploratory data : exploratory data analysis.a. perform exploratory data analysis on all variables in the data set. realizing that you

There are assumptions of multiple regression one of them is : there are assumptions of multiple regression. one of them is the residuals are independent. this means that successive

Hemmingway inc is considering 5million research and : hemmingway inc. is considering 5million research and development rampd project. profit projections appear promising but

1 what is the purpose of conducting an experiment how does : 1. what is the purpose of conducting an experiment? how does an experimental design accomplish its purpose?2. what are

A group of statistics students decided to conduct a survey : a group of statistics students decided to conduct a survey at their university to find the average mean amount of time

In studies for a medication 13 percent of patients gain : in studies for a medication 13 percent of patients gain weight as a side effect. suppose 514 patients are randomly

A file cabinet manufactor estimates that 5 of its file : a file cabinet manufactor estimates that 5 of its file cabinets will have drawers that close improperly. assume a

Starbucks coffee co uses a data-based approach to improving : starbucks coffee co. uses a data-based approach to improving the quality and customer satisfaction of its products.

User Account

All Pages