W7&8 ppt Flashcards
Is the process of describing some property of a phenomenon of interest, usually by assigning numbers in a reliable and valid way.
Measurement
___________________ can be thought of as a generalized idea that represents something of meaning
Concept
A device providing a range of values that correspond to different vales in a concept being measures.
Scales
represent the most elementary level of measurement
Nominal scales
allow things to be arranged in order based on how much of some concept they possess.
Ordinal scales
have both nominal and ordinal properties, but they also capture information about differences in quantities of a concept
Interval scales
represent the highest form of measurement
ratio scales
assigns a value to an object for identification or classification purposes only. the value can be, but does not have to be, a number because no quantities are being represented. in this sense, a ________________is truly a qualitative scale.
nominal scales
allow things to be arranged in order based on how much of some concept they possess. in other words, an ___________________________ is a ranking scale.
ordinal scales
Ordinal scales allow things to be arranged in order based on how much of some concept they possess. in other words, an ordinal scale is a _______________.
ranking scale
In fact, we often use the term rank order to describe an __________________
ordinal scales
have both nominal and ordinal
properties, but they also
capture information about
differences in quantities of
a concept.
Interval Scales
represent the highest form of measurement in that they have all the properties of interval scales with the additional attribute of representing absolute quantities.
Ratio scales
provide iconic measurement.
Ratio scales
are those that take on only one of a finite number of values.
Discrete Measure
A _________________ is most often
used to represent a classification
variable.
Discrete Measure
— discrete scale–
Therefore, _____________ do not represent intensity of measures, only membership.
Discrete Measure
–Discrete scale–
- Yes - or - No Response
- Disagree - Neutral - Agree
are example of ____________
Discrete Measure
A ___________________ is one that takes one of a set of particular values. These could be qualitative values (for example, different breeds…
Discrete measure
are those assigning values anywhere along some scale range in a place that corresponds to the intensity of some concept.
Continuous Measure
A ______________ is one that is defined in terms of a real number.
It could fall anywhere in a particular range of values, though …
Continuous Measure
A scale created by simply summing (adding together) the response to each item making up the composite measure.
Summated scales
are continuous measures.
Ratio measures
means that the value assigned for a response is treated oppositely from the other items.
Reverse Coding
Thus, on a 5-point scale, the values are reversed as follows:
* 5 becomes 1
* 4 becomes 2
* 3 stays 3
* 2 becomes 4
* 1 becomes 5
Reverse coding
A measurement task that requires respondents to rank order a small number of stores, brands, or objects on the basis of overall preference or some characteristic of the stimulus.
Ranking
- A measurement task that
requires respondents to estimate the magnitude of a characteristic or quality that a brand, store, or object possesses.
Rating
A measurement task that
presents a respondent with several objects or product concepts and requires the
respondent to arrange the objects into piles or classify the product concepts.
Sorting