PSYC 2101: Exam 2 Study Guide questions well
answered graded A+
1. Dr. Pierre is interested in studying levels of
changes in heart rate
anxiety in children who have lived through
while viewing images of
a major natural disaster. As she plans her
the af- terettect of a
study, she is considering natural disas-
various operational definitions of anxiety. Which of
the ter following is an example of an operational
definition for anxiety that she could consider?
2. What is the term for a researcher's definition Conceptual definition
of the variable in question at a theoretical
level?
A ratio scale of measure-
3. What is the difference between a ratio scale ment has a zero value
of mea- surement and an interval scale of that actually means
measurement? "noth- ing" or "the
absence of
something," but an
inter- val scale does
not.
4. What does it mean that "reliability is necessary but not If a measure
is valid, it is
sufficient for validity"? also reliable.
5. A correlation coefficient and a scatterplot both provide the strength
and direc-
which of the following pieces of information? 7. RESEARCH
STUDY 5.1:
Dr.
6. In which of the following ways are content Rodriquez is
and face validity similar? considering
,PSYC 2101: Exam 2 Study Guide questions well
answered graded A+
conducting a study examining whether tion of the relationship be-
narcissistic people have poorer romantic tween two
relationships than those who are not measurements
narcissistic. One of her first tasks is to
determine which of her participants are Both involve subjective
narcissistic and which are not. She decides to judgments.
use the scale created
= 0.95
,PSYC 2101: Exam 2 Study Guide questions well
answered graded A+
by a colleague, the Donal scale. Question 1 reads,
"I tend not to think about other people as
much as I think about myself." Question 2
reads, "I do not have a high opinion of
myself." Question 3 reads, "I think other
people think I am really special." Dr. Rodriquez
decides to test the internal reliability of her
measure. Which of the following results
demonstrates good internal reliability?
There appears to be
8. RESEARCH STUDY 5.1: Dr. Rodriquez is good internal reliability
considering conducting a study examining in the
whether narcissistic
people have poorer romantic relationships than those
scale. who are not narcissistic. One of her first
tasks is to determine which of her participants are
narcissistic
and which are not. She decides to use the scale
created by a colleague, the Donal scale. Question
1 reads, "I tend not to think about other
people as much as I think about myself."
Question 2 reads, "I do not have a high
opinion of myself." Question 3 reads, "I think
other people think I am really special." Dr.
Rodriquez calculates a correlation coefficient
(r) to examine the relationship between
Question 1 and Question 2 and between
Question 1 and Question 3. She finds a cor-
relation coefficient of r = -0.73 between
Questions 1 and 2 and a correlation coefficient
of r = 0.74 between Questions 1 and 3. Which of
, PSYC 2101: Exam 2 Study Guide questions well
answered graded A+
the following is true of her findings?
9. RESEARCH STUDY 5.2: Dr. Sheffield is a clinical psy- to obtain evidence for
cri-
chologist who specializes in treating pathological gam- terion
validity
bling. Pathological gambling is defined as being
un- able to resist impulses to gamble. Bothered
by not hav-
answered graded A+
1. Dr. Pierre is interested in studying levels of
changes in heart rate
anxiety in children who have lived through
while viewing images of
a major natural disaster. As she plans her
the af- terettect of a
study, she is considering natural disas-
various operational definitions of anxiety. Which of
the ter following is an example of an operational
definition for anxiety that she could consider?
2. What is the term for a researcher's definition Conceptual definition
of the variable in question at a theoretical
level?
A ratio scale of measure-
3. What is the difference between a ratio scale ment has a zero value
of mea- surement and an interval scale of that actually means
measurement? "noth- ing" or "the
absence of
something," but an
inter- val scale does
not.
4. What does it mean that "reliability is necessary but not If a measure
is valid, it is
sufficient for validity"? also reliable.
5. A correlation coefficient and a scatterplot both provide the strength
and direc-
which of the following pieces of information? 7. RESEARCH
STUDY 5.1:
Dr.
6. In which of the following ways are content Rodriquez is
and face validity similar? considering
,PSYC 2101: Exam 2 Study Guide questions well
answered graded A+
conducting a study examining whether tion of the relationship be-
narcissistic people have poorer romantic tween two
relationships than those who are not measurements
narcissistic. One of her first tasks is to
determine which of her participants are Both involve subjective
narcissistic and which are not. She decides to judgments.
use the scale created
= 0.95
,PSYC 2101: Exam 2 Study Guide questions well
answered graded A+
by a colleague, the Donal scale. Question 1 reads,
"I tend not to think about other people as
much as I think about myself." Question 2
reads, "I do not have a high opinion of
myself." Question 3 reads, "I think other
people think I am really special." Dr. Rodriquez
decides to test the internal reliability of her
measure. Which of the following results
demonstrates good internal reliability?
There appears to be
8. RESEARCH STUDY 5.1: Dr. Rodriquez is good internal reliability
considering conducting a study examining in the
whether narcissistic
people have poorer romantic relationships than those
scale. who are not narcissistic. One of her first
tasks is to determine which of her participants are
narcissistic
and which are not. She decides to use the scale
created by a colleague, the Donal scale. Question
1 reads, "I tend not to think about other
people as much as I think about myself."
Question 2 reads, "I do not have a high
opinion of myself." Question 3 reads, "I think
other people think I am really special." Dr.
Rodriquez calculates a correlation coefficient
(r) to examine the relationship between
Question 1 and Question 2 and between
Question 1 and Question 3. She finds a cor-
relation coefficient of r = -0.73 between
Questions 1 and 2 and a correlation coefficient
of r = 0.74 between Questions 1 and 3. Which of
, PSYC 2101: Exam 2 Study Guide questions well
answered graded A+
the following is true of her findings?
9. RESEARCH STUDY 5.2: Dr. Sheffield is a clinical psy- to obtain evidence for
cri-
chologist who specializes in treating pathological gam- terion
validity
bling. Pathological gambling is defined as being
un- able to resist impulses to gamble. Bothered
by not hav-
