SFL 290 FINAL EXAM QUESTIONS WITH VERIFIED
ANSWERS
Reliability - Answers - How stable or consistent is the measure?
Validity - Answers - Does the instrument measure what it says it measures?
What are the test statistics for reliability - Answers - Cohens Kappa & Crombachs Alpha
Where is the conceptual portion in an article? - Answers - The introduction
advantages of a simple random sample? - Answers - generalizable to sampled
population
Advantages of convenience sampling? - Answers - less costly, easy
Advantages of purposive sampling? - Answers - can choose participants according to
purpose of study
Advantages of Snowball sampling? - Answers - Can choose any participants who fit the
purposes of study
Advantages of Quota Sampling - Answers - Insures some degree of representativeness
of important subgroups in the population
What is the main instrument in qualitative research? - Answers - The researcher
Nominal Scale - Answers - Categorical (race, gender, marital status)
Ordinal Scale - Answers - Ranking (of objects or people)
Interval Scale - Answers - No zero (temperature)
Ratio Scale - Answers - Absolute zero indicates absence of factor
Qualitative Research - Answers - Inductive, (gather data and generate a theory from the
data) Sample is generally purposive and small in size, collects data through closed-
ended questionnaires and observations that include preset operational definitions
Quantitative Research - Answers - Deductive, (generate theory and then gather data)
Sample can be non-probability or probability, its generally large, collect data through
interviews that are closed ended and naturalistic observations
ANSWERS
Reliability - Answers - How stable or consistent is the measure?
Validity - Answers - Does the instrument measure what it says it measures?
What are the test statistics for reliability - Answers - Cohens Kappa & Crombachs Alpha
Where is the conceptual portion in an article? - Answers - The introduction
advantages of a simple random sample? - Answers - generalizable to sampled
population
Advantages of convenience sampling? - Answers - less costly, easy
Advantages of purposive sampling? - Answers - can choose participants according to
purpose of study
Advantages of Snowball sampling? - Answers - Can choose any participants who fit the
purposes of study
Advantages of Quota Sampling - Answers - Insures some degree of representativeness
of important subgroups in the population
What is the main instrument in qualitative research? - Answers - The researcher
Nominal Scale - Answers - Categorical (race, gender, marital status)
Ordinal Scale - Answers - Ranking (of objects or people)
Interval Scale - Answers - No zero (temperature)
Ratio Scale - Answers - Absolute zero indicates absence of factor
Qualitative Research - Answers - Inductive, (gather data and generate a theory from the
data) Sample is generally purposive and small in size, collects data through closed-
ended questionnaires and observations that include preset operational definitions
Quantitative Research - Answers - Deductive, (generate theory and then gather data)
Sample can be non-probability or probability, its generally large, collect data through
interviews that are closed ended and naturalistic observations
