AND SOLUTIONS RATED A+
✔✔Participants are hand picked to be included in the sample - ✔✔purposive
✔✔Done randomly a process in which each element of the population has an equal
chance of being chosen - ✔✔selection
✔✔Another name for multistage sampling - ✔✔cluster
✔✔A type of sampling where every kth case is selected from a list - ✔✔systematic
✔✔Dividing the population into homogeneous subgroups from which elements are
selected at random - ✔✔stratified
✔✔Biophysiologic measures taken directly within a human being are called:
A in vivo measures
B in vitro measures
C in situ measures
D intact measures - ✔✔in vivo measures
✔✔Questionnaires rate high on structure, quantifiability, obtrusiveness and objectivity.
True or False - ✔✔TRUE
✔✔Interviews are usually more effective than questionnaires as a means of obtaining
information about socially unacceptable behaviors.
True or False - ✔✔True
✔✔Refers to the consistency with which an instrument measures the attribute -
✔✔Reliability
✔✔An instrument that produces very similar or the same results in repeated measures
of an attribute has a high level of this - ✔✔Reliability
✔✔Is concerned with accuracy of measures - ✔✔Reliability
✔✔Is concerned with how the researcher has conceptualized the variables in the study
- ✔✔Validity
✔✔Three aspects of this include stability, internal consistency and relevance -
✔✔Reliability
✔✔Sometimes a coefficient is used to measure this. - ✔✔Validity and Reliability
, ✔✔The degree to which an instrument measures what it is supposed to be measuring -
✔✔Validity
✔✔This is not an all-or-nothing characteristic of an instrument, it is a question of degree
- ✔✔Validity and Reliability
✔✔Can be enhanced by adding more subparts to the scale - ✔✔Reliability
✔✔The higher the level of this in an instrument, the lower the amount of error in the
obtained scores - ✔✔Reliability
✔✔Reliability vs. Validity - ✔✔Reliability - the degree of consistency or dependability
with which an instrument measures the attribute it is designed to measure
Validity- the degree to which an instrument measures what it is intended to measure
✔✔Refers to the confidence in the truth of the data - ✔✔Credibility
✔✔Prolonged engagement and persistent observation may enhance this -
✔✔Credibility
✔✔Refers to data stability over time and over conditions - ✔✔Dependability
✔✔If two or more people agree about the data's relevance or meaning it may have this -
✔✔confirmability
✔✔Stepwise replication is one approach used to assess this aspect of trustworthiness -
✔✔Dependability
✔✔Refers to the objectivity or neutrality of the data - ✔✔confirmability
✔✔Nominal - ✔✔using numbers simply to categorize characteristics
✔✔Ordinal - ✔✔ranking objects based on their relative standing on a specific attribute
✔✔Interval - ✔✔specifying the ranking of objects on an attribute and the distance
between those objects
✔✔Ratio - ✔✔involveer scales with a meaningful zero that provide information about the
magnitude of an attribute