Exam 6: Quantitative and Qualitative Measurement and Sampling

What are the differences and similarities between quantitative and qualitative measurement?

____________ links a conceptual definition to a specific set of quantitative measurement techniques or procedures.

Nonrandom sample is the number of cases in the sample divided by the number of cases in the population or the sampling frame,or the proportion of the population in a sample.

_________________ is the highest,most precise level of measurement;variable attributes can be rank ordered,the distance between them precisely measured,and there is an absolute zero.

_______________ addresses the question,Does the measure actually measure accurately the object of study? This is the most basic form of measurement validity because it requires conceptual definitions that have clearly specified boundaries.

Continuous variables have an infinite number of values or attributes that flow along a continuum.The values can be divided into many smaller increments;in mathematical theory,there is an infinite number of increments.

Scales are a measuring technique in which a researcher adds or combines numerous indicators of a construct into a single score (if you remember,a type of triangulation).

________________,means that the indicators of one construct hang together or converge but also are negatively associated with opposing constructs.

To have___________,an indicator must be associated with a preexisting indicator that is already judged to be valid (i.e. ,it has face validity).

_______________ applies when researchers use multiple measurement indicators (e.g. ,several items in a questionnaire all measure the same construct).

Indexes attempt to capture the intensity,direction,or potency of a variable construct (e.g. ,measuring feelings toward something using "very likely," "likely," "not sure," "unlikely," "very unlikely").

_______________ is reliability across various groups or different populations of people.