Explore BrainMass
Share

Scale of measurements

This content was STOLEN from BrainMass.com - View the original, and get the already-completed solution here!

? Imagine that you are a researcher who has collected data from 5,000 participants on a variable of interest that is likely to be normally distributed.
? Describe the variable. Is the scale of measurement nominal, ordinal, interval, or ratio? Why?
? What does it mean to say that this variable is "normally distributed"?
? In a normal distribution, such as in this example, you can define a probability value for every score. Define probability value in your own words. How is a probability value of .05 in this example related to the normal curve?

Summary of the problem: Give a brief description of the variable and whether the scale of measurement is nominal, ordinal, interval, or ratio, and why. Explain what it means to say that this variable is "normally distributed." Then, define probability value in your own words and explain how a probability value of .05 in this example is related to the normal curve.

© BrainMass Inc. brainmass.com October 24, 2018, 9:18 pm ad1c9bdddf
https://brainmass.com/physics/scales/scale-of-measurements-123023

Solution Summary

Details of scale of measurements: nominal, ordinal, interval and ratio are explained in detail.

$2.19
See Also This Related BrainMass Solution

Measurement Scaling and Data Analysis

1. How do you decide if you will use composite scale score or a summated scale score? Justify your decision. How will you measure reliability, validity, and sensitivity? Explain how you will deal with ethical dilemmas during the research process (confidentiality, anonymity, conflicts of interest, informed consent, debriefing, experiments on human subjects, and so forth).

2. Using the survey attached as a document, choose 10 people in your organization to respond to the survey. Before disseminating the surveys, please pre-code the data.
Perform the following:
1. Create a data file using an Excel worksheet.
2. Compute descriptive statistics for the variable(s), and explain the measures of central tendency and measures of dispersion that are most appropriate for your study.
3. Create a pie chart with percentages.
4. Compute a frequency table and histogram for each variable.
5. Decide which measures of central tendency, spread, and graphical display would be most appropriate for the study.

Explain how the data will be analyzed. This section should begin with a brief introduction to the section and a description of the problem. You must also explain how the data will be coded and edited. Provide justification for the descriptive statistics that will be employed in the study. Please do not include data, results, or graphical displays.

The attached questionnaire is completed. I just need some help with setting this up correctly for I have been having issues and need some guidance.

View Full Posting Details