N547: Research Exam 2 Questions With Complete Solutions
"truth value" of qualitative data and qualitative analysis Correct
Answer -Credibility
-Dependability
-Confirmability
-Transferability
4 aspects of validity Correct Answer •The degree to which an
instrument measures what it is supposed to measure
-Face validity
-Content validity
-Criterion-related validity
-Construct validity
4 components to power analysis Correct Answer 1.Significance
criterion (α)
2.Sample size (N)
3.Population effect size—the magnitude of the relationship
between research variables (γ)-estimate of how wrong the null
hypothesis is
4.Power—the probability of obtaining a significant result (1-β)
advantages of interviews over questionnaires Correct Answer
•Higher response rates
•Opportunities to clarify issues with respondents
•Greater depth of questioning possible
•Less risk of missing information
advantages of questionnaires over interviews Correct Answer
•Lower costs
,•Possibility of anonymity
•Lack of interviewer bias
alpha Correct Answer the probability of a type I error
the more stringent, the lower the power
ANOVA (analysis of variance) Correct Answer an inferential
statistical test for comparing the means of three or more groups
dep: interval, ratio
audit trail Correct Answer systematic documentation of
material that allows an independent auditor to draw conclusions
about trustworthiness
Belmont Report/ fundamental ethical prinipcles of research
Correct Answer 1. Respect for persons
2. Beneficence
3. Justice
beneficence Correct Answer meaning to do good for the people
involved
involves acts of kindness or charity that go beyond strict
obligation.
beta Correct Answer -Probability of Type II Error or false
negative
, Biophysiological Measures Correct Answer physiologic and
physical variables typically requiring specialized technical
instruments and equipment for measurement. A major strength
is their objectivity.
Bivariate Statistical Tests Correct Answer 1. t-Test
2. Analysis of variance (ANOVA)
3. Pearson's r
4. Chi-square test
bivariate stats Correct Answer •2 variables
•Descriptive statistics—describing relationships between 2
variables
case studies Correct Answer Focus on a single entity
(individual, family, community) with intensive scrutiny
Chi-Square Test Correct Answer •Tests difference in
proportions in categories within a contingency table
•Dependent variable-nominal
•Nonparametric test
codes of ethics Correct Answer •Nuremberg Code
•Declaration of Helsinki
•Belmont Report
Codes for professional disciplines
coding data Correct Answer transforming data into symbols
compatible with computer analysis—usually numeric values
"truth value" of qualitative data and qualitative analysis Correct
Answer -Credibility
-Dependability
-Confirmability
-Transferability
4 aspects of validity Correct Answer •The degree to which an
instrument measures what it is supposed to measure
-Face validity
-Content validity
-Criterion-related validity
-Construct validity
4 components to power analysis Correct Answer 1.Significance
criterion (α)
2.Sample size (N)
3.Population effect size—the magnitude of the relationship
between research variables (γ)-estimate of how wrong the null
hypothesis is
4.Power—the probability of obtaining a significant result (1-β)
advantages of interviews over questionnaires Correct Answer
•Higher response rates
•Opportunities to clarify issues with respondents
•Greater depth of questioning possible
•Less risk of missing information
advantages of questionnaires over interviews Correct Answer
•Lower costs
,•Possibility of anonymity
•Lack of interviewer bias
alpha Correct Answer the probability of a type I error
the more stringent, the lower the power
ANOVA (analysis of variance) Correct Answer an inferential
statistical test for comparing the means of three or more groups
dep: interval, ratio
audit trail Correct Answer systematic documentation of
material that allows an independent auditor to draw conclusions
about trustworthiness
Belmont Report/ fundamental ethical prinipcles of research
Correct Answer 1. Respect for persons
2. Beneficence
3. Justice
beneficence Correct Answer meaning to do good for the people
involved
involves acts of kindness or charity that go beyond strict
obligation.
beta Correct Answer -Probability of Type II Error or false
negative
, Biophysiological Measures Correct Answer physiologic and
physical variables typically requiring specialized technical
instruments and equipment for measurement. A major strength
is their objectivity.
Bivariate Statistical Tests Correct Answer 1. t-Test
2. Analysis of variance (ANOVA)
3. Pearson's r
4. Chi-square test
bivariate stats Correct Answer •2 variables
•Descriptive statistics—describing relationships between 2
variables
case studies Correct Answer Focus on a single entity
(individual, family, community) with intensive scrutiny
Chi-Square Test Correct Answer •Tests difference in
proportions in categories within a contingency table
•Dependent variable-nominal
•Nonparametric test
codes of ethics Correct Answer •Nuremberg Code
•Declaration of Helsinki
•Belmont Report
Codes for professional disciplines
coding data Correct Answer transforming data into symbols
compatible with computer analysis—usually numeric values
