Midterm 405 Flashcards
What scale of measurement is equal level with an absolute zero
Ratio
What scale of measurement is equal level without absolute zero
Interval
What scale of measurement uses ordering level
Ordinal
What scale of measurement uses naming level
Nominal
What are observations that can be counted and classified and, because of the relative values, can be ranked and ordered
Ordinal level measrement
What kind of variable has a numeric characteristic of a population being studied
Quantitative variable
What variable can only assume cherry values and there are gaps between values
Discrete variable
What level of measurement has a natural zero point and the zero point means the absence of the observation
Ratio level measurement
What level of measurement contains observations of a qualitative variable that can only be classified and counted
Nominal level of measurement
What three attributes are necessary for an instrument to be reliable
Stability, homogeneity, equivalence
What level is considered the highest level of measurement in descriptive statistics
Ratio measurement
What are the measures of central tendency
Mean, median, mode.
Describes the pattern of responses among a sample and summarizes it with a single number.
What is the most widely used measure of central tendency and is an average of all the scores
Mean
Which measure of central tendency denotes the frequency of distribution, is often used with nominal data, and cannot be used for calculation
Mode
Convenience
Quotation
Purposive
And network are all types of what kind of strategy of sampling
Nonprobability
