Descriptive statistics
Median
ALL qualifying subjects or objects being studied
What is a population?
The two main types of data in statistics
What are Qualitative and Quantitative?
The feasibility issue that students frequently run out of before the paper is due
What is Time
First step in a research process
What is
1. Defining the problem/issue
2. Developing a good research question about it
Best song by Beyonce.
What is If I Were A Boy (Halo or All Single Ladies is also acceptable.... I guess....)
A subset, or part, of a population.
What is a sample?
A qualitative variable
What is a variable that has distinct categories according to some characteristic or attribute. The values of the variable consist of attributes, labels, or non numerical entries.
The feasibility issue that results in students scrolling through lots of spreadsheets, looking closely at every line for typos or odd numbers, or realizing there is a lot of blanks in the dataset, or that they hoped for 50 responses and got 900.
What is messy data?
The minimum number of data points you probably need to answer a research question.
What is
35-40, in general, of course
it depends....
Mode
What is probably the least useful descriptive statistics (but it depends)?
Mean, median or mode, standard deviation, range, etc.
What are examples of descriptive statistics?
A quantitative variable.
What is a variable that can be counted or measured. The values of the variable are numerical measurements or counts.
This feasibility issue means you may have to change your question somewhat, such as broadening it?
The target number of data points needed for most statistical analyses, in general, (specifically regression).
what is often 350-400, could be up to 1500 - but it depends....
The descriptive statistic that can be highly skewed by an outlier
What is mean?
Inferential statistics
What are statistics involving using sample data to make conclusions about a population.
This team is the only one on the list that is NOT a real NC baseball team:
Greenville Yard Gnomes
Burlington Sock Puppets
Hendersonville Hanky-Pankies
Boone Bigfoots
Who are the Henderson Hanky-Pankies
But wouldn't that make a great team name?
The best song by the band Wham!
What is, "Wake me up before you go go"
In a research project, you should try to make sure your data are ______ and _______.
What is valid and reliable
How standard deviation is calculated
Take each observation and find the distance from it to the average. Square each one (why?). Add them all up. Divide by the number of observations. Then un-square (take the square root).
How descriptive and inferential statistics differ
What is descriptive statistics only attempts to describe exactly the data at hand (population or sample), while inferential statistics attempt to make predictions/generalizations about a population based on sample data.
Another way to refer to a continuous variable.
What is Interval data? or What is a variable that can assume an infinite number of values between any two specific values.
The best, and perhaps the most common method to use in answering a direct question about your research.
What is, "It depends"
At its heart, statistical analysis is simply looking for _________
Extra credit: ...and whether or not they are ________.
What are patterns?
And whether or not they are random.