Thursday, September 7
Fun class today ya'll, I really liked how you worked through your research questions. Today, we concentrated on levels of measurement and types of error.
1.) Nominal, Ordinal, Interval, and Ratio level data.
2.) Instrument, Application, and Random error.
For blogging this weekend, I want you to think of a variable that can be measured two different ways. Give examples of how the same variable can be measured on the nominal, ordinal, interval, or ration level.
1.) Nominal, Ordinal, Interval, and Ratio level data.
2.) Instrument, Application, and Random error.
For blogging this weekend, I want you to think of a variable that can be measured two different ways. Give examples of how the same variable can be measured on the nominal, ordinal, interval, or ration level.
posted by Dr. Jeffrey Bolt at 6:09 PM
10 Comments:
Our group talked about parking in "C" lots on campus. To take our research further a variable that could either be interval or ratio is how much a student paid for their "C" parking pass. For interval you could give choices such as 0-25 dollars, 26-50 dollars, 51-100 dollars, or 101-125 dollars, and so on. Personally I paid 150 dollars to walk from the Ice Arena. For ratio you could just ask an open ended question, "How much did you pay for a parking pass?" and you could get an absolute zero which would mean no parking pass at all.
Danielle -section 1-
In class today, our group talked about the relationship between external factors (time, money,weather, etc.) and a first date. To expand on this, a variable that could either be interval or ratio is the question-How much money is appropriate to bring on a first date? For interval you can give choices such as $40, $50, $60, $70, $80, and so on, each amount increasing by 10 dollars. For ratio the choices of amounts given would be the same with the exception that there is an absolute zero. It is possible for someone to not bring any money at all on a first date.
Krysten Reed #2
In class today our group topic was: How is a students GPA affected by how much study time they put into the class. To expand on this, a variable that could either be interval or ratio is the question: (Interval) If you were to study 4 hours for every hour you were in class how high is you GPA for the semester? 0.0-1.0, 1.0-2.0, 2.0-3.0, 3.0-4.0. (Ratio) To expand on the question for ratio I would say that you could have an absolute zero which means that no study time happened at all and the GPA for the semester resulted in a 0.0.
Melissa Giancola #1
Our group examined how the time of day may affect class perfomance. We looked at this research question from a nominal standpoint, as well as from an interval view. The nominal question would be phrased as such: Which time of day do you prefer to attend class? Day (1) or Night (2) The interval level would be: One performs better in a day class than a night class. SA A N D SD.
Marie Payden #2
For a market research survey about, say, laundry detergent, the participant would be screened on factors such as whether they were male or female (nominal), their age group (ordinal), and how many times a week they do laundry (ratio).
Jacqui Jezek (1)
Our group wanted to study how much money would be appropriate to bring on a first date. Our example involved a ratio level of measurement, which would give the respondent a choice of answering $0. This question could also be asked by providing responses with interval levels of measurement. For example, the resopondnet would have to answer with one of the following choices: $0-$10, $11-$20, $21-30, $31-$40, etc. This is an interval level because the distance between the choices is equal to one another.
Lindsay Sleighter #2
For the research Question, How many credit hours do students take on average at each age ( 18, 19, 20…)? A variable for that question could be credit hours. One could measure credit hours using the interval level data. It could be: 1-2, 3-4, 5-6, 7-8, 9-10, and so on. You could also measure that variable using the interval level data by using an open ended question, Ratio level data. How many credit hours are you taking this semester? This would also include students who are not in school, and thus would answer “0.”
-Deborah Pritchard #1
You could look at students grades relate to attendance in class. To see this you could ask students what there GPA was this past semester? 0.0-1.0, 1.0-2.0, 2.0-3.0, 3.0-4.0, 4.0-5.0, 5.0-6.0 -interval
For ratio you could ask them on average how classes were they absent for?
0 classes, 1-2 classes, 2-4 classes classes, 4-6 classes, 6-8 hours, 8-10 hours or 10+ hours.
It is possible for someone to have a 0.0 GPA and never attend class.
Jen Millar
Jacqui Jezek take on a market survey for laundry is great. Gender--Nominal:Age--Ordinal:Number of times a week one does laundry--Ratio, because one can do laundry 0 times per week. Now I will throw this last one into the wash for interval. When one does laundry, how much does it cost. $0-$5:$5-$10:$10-$15:$15-$20
Mark N. section 2
Something that I think can be measured two different ways would be characteristics that you look for in your significant other. For example, it can be asked like an open ended question: What feature do you look for the most in a dating partner? Here, the question is nominal. A different way to measure it would be by asking: Rank each feature that you look for in a dating partner, 1-5 scale, 1 being the most important. Humor, Looks, Personality, Honesty, Sensitivity. Here, it changes the features to be ordinal.
Heather Sichi, section 1
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