Assessment Study Flashcards
What are the two types of analytical statistics ?
Descriptive and Inferential
Descriptive statistics are used to___
inform
Inferential statistics are used to ___
Predict /Trend
What’s the four levels of measurement?
Nominal
Ordinal
Interval
Ratio
What level of measurement represents continual data with unique zero point ?
Ratio
What level of measurement orders data at equal distances apart ?
Interval
What level of measurement places qualitative objects in some kind of order ?
Ordinal
What level of measurement represents unordered categories or groups of objects ?
Nominal
What type of error does an outlier create ?
Out of range
What type of error is an unpredictable error ?
Random Error
What type of error occurs with missing data and can distort data as well?
Omission Error
What type of error tends to repeat itself and can skew results ?
Systematic Error
What is the main process of quality control?
Reduce/ minimize errors
What type of study is where all variable measurements are under the researchers control?
Experimental Study
What type of study is used when the test subject is impractical or impossible to control?
Observational Study
What type of study is it when participants are not told if they are in the treatment group or experiment group?
Blind Study
What is applied by the researcher to each test subject ?
Treatment
What type of study is where neither the treatment allocator nor the participants known who is in the treatment group or experiment group ?
Double Blind Study
What type of bias is when the questions favor an outcome or the interviewer as questions that favor an outcome ?
Information Bias
What type of analysis represents the average outcome (payoff) when the future includes scenarios that may or may not happen?
Expected Monetary Value Analysis
How can you treat observation points that are very distant from the rest of the data set in an analysis ?
May or may not be included in analysis but causes skewness
What bias occurs from not selecting a random sample?
Measurement Bias
What bias occurs when respondents believe it will be beneficial if selected ?
Conscious Bias
What measures the difference between the third and first quartile ?
Inter-quartile range ordered from lowest to highest