Inquizitive 4 complete questions and
answers | verified
A study has statistical validity CORRECT ANSWERS when the numbers and
calculations reported by the research are reliable and can be repeated across multiple
studies.
A study has external validity CORRECT ANSWERS when the results apply to different
contexts and situations, and to the population researchers are interested in examining.
A study has internal validity CORRECT ANSWERS when there are no alternative
explanations for the relationship between two variables.
A study has construct validity CORRECT ANSWERS when the variables were
measured or manipulated well, and that they represent the concepts they're meant to
represent.
when the variables were measured or manipulated well, and that they represent the
concepts they're meant to represent. CORRECT ANSWERS internal validity
Results generalize to other people and situations. CORRECT ANSWERS external
validity
A variable is operationalized well. CORRECT ANSWERS construct validity
Results are accurate and reasonable and have been replicated. CORRECT ANSWERS
statistical validity
A researcher had two separate groups of participants drink either one glass of red wine
or no red wine, in order to find out whether drinking red wine can reduce the stress
levels that participants record on a self-reported stress measure.
Identify the independent variable in this example. CORRECT ANSWERS amount of red
wine
JoAnn is interested in the availability of mental health care for emergency room
patients. She has a limited amount of time with each participant, as patients are rapidly
moved in and out of the emergency room. She decides to use a shorter, less reliable
measure of mental health care availability in favor of getting as many participants as
possible, enabling her to reach people of many different backgrounds, illnesses, and
injuries.
In this example, JoAnn is sacrificing ______ validity to strengthen __________ validity.
CORRECT ANSWERS construct ---- external
, What type of validity is not prioritized when testing association or frequency claims, but
is when testing causal claims? CORRECT ANSWERS internal
Because neither association nor frequency claims attempt to say that one variable is the
cause of change in another, they cannot be evaluated for internal validity.
Identify the true statements about the statistical validity of association claims.
CORRECT ANSWERS - Studies that have been conducted more than once have better
statistical validity.
- A study that finds a 55% difference between groups demonstrates a stronger
association than a study that finds a 10% difference between groups.
- Confidence intervals reflect the precision of the estimated association.
Identify the false statement(s) about the statistical validity of association claims.
CORRECT ANSWERS - Studies with larger samples have wider confidence intervals.
Aaron is conducting an experiment in which he randomly assigns athletes recovering
from grade 1 muscle strains to two different forms of physical therapy, in order to see
which therapy produces the shortest recovery time.
In this example, type of physical therapy is the _________ variable.
In this example, recovery time is the _______ variable.
This study would likely result in a ______ claim. CORRECT ANSWERS independent ---
dependent --- causal
Professor Nakum designs an experiment to test the effect of word familiarity on
memory. She creates three lists with 30 words each: common, uncommon, and
nonsense words. Participants study one of the lists for five minutes, solve math
problems for five minutes, then write all the words they recall from the list. The
participants' score is the number of words they correctly recalled.
type of word list CORRECT ANSWERS independent variable
Professor Nakum designs an experiment to test the effect of word familiarity on
memory. She creates three lists with 30 words each: common, uncommon, and
nonsense words. Participants study one of the lists for five minutes, solve math
problems for five minutes, then write all the words they recall from the list. The
participants' score is the number of words they correctly recalled.
number of words on the lists CORRECT ANSWERS constant
Professor Nakum designs an experiment to test the effect of word familiarity on
memory. She creates three lists with 30 words each: common, uncommon, and
nonsense words. Participants study one of the lists for five minutes, solve math
answers | verified
A study has statistical validity CORRECT ANSWERS when the numbers and
calculations reported by the research are reliable and can be repeated across multiple
studies.
A study has external validity CORRECT ANSWERS when the results apply to different
contexts and situations, and to the population researchers are interested in examining.
A study has internal validity CORRECT ANSWERS when there are no alternative
explanations for the relationship between two variables.
A study has construct validity CORRECT ANSWERS when the variables were
measured or manipulated well, and that they represent the concepts they're meant to
represent.
when the variables were measured or manipulated well, and that they represent the
concepts they're meant to represent. CORRECT ANSWERS internal validity
Results generalize to other people and situations. CORRECT ANSWERS external
validity
A variable is operationalized well. CORRECT ANSWERS construct validity
Results are accurate and reasonable and have been replicated. CORRECT ANSWERS
statistical validity
A researcher had two separate groups of participants drink either one glass of red wine
or no red wine, in order to find out whether drinking red wine can reduce the stress
levels that participants record on a self-reported stress measure.
Identify the independent variable in this example. CORRECT ANSWERS amount of red
wine
JoAnn is interested in the availability of mental health care for emergency room
patients. She has a limited amount of time with each participant, as patients are rapidly
moved in and out of the emergency room. She decides to use a shorter, less reliable
measure of mental health care availability in favor of getting as many participants as
possible, enabling her to reach people of many different backgrounds, illnesses, and
injuries.
In this example, JoAnn is sacrificing ______ validity to strengthen __________ validity.
CORRECT ANSWERS construct ---- external
, What type of validity is not prioritized when testing association or frequency claims, but
is when testing causal claims? CORRECT ANSWERS internal
Because neither association nor frequency claims attempt to say that one variable is the
cause of change in another, they cannot be evaluated for internal validity.
Identify the true statements about the statistical validity of association claims.
CORRECT ANSWERS - Studies that have been conducted more than once have better
statistical validity.
- A study that finds a 55% difference between groups demonstrates a stronger
association than a study that finds a 10% difference between groups.
- Confidence intervals reflect the precision of the estimated association.
Identify the false statement(s) about the statistical validity of association claims.
CORRECT ANSWERS - Studies with larger samples have wider confidence intervals.
Aaron is conducting an experiment in which he randomly assigns athletes recovering
from grade 1 muscle strains to two different forms of physical therapy, in order to see
which therapy produces the shortest recovery time.
In this example, type of physical therapy is the _________ variable.
In this example, recovery time is the _______ variable.
This study would likely result in a ______ claim. CORRECT ANSWERS independent ---
dependent --- causal
Professor Nakum designs an experiment to test the effect of word familiarity on
memory. She creates three lists with 30 words each: common, uncommon, and
nonsense words. Participants study one of the lists for five minutes, solve math
problems for five minutes, then write all the words they recall from the list. The
participants' score is the number of words they correctly recalled.
type of word list CORRECT ANSWERS independent variable
Professor Nakum designs an experiment to test the effect of word familiarity on
memory. She creates three lists with 30 words each: common, uncommon, and
nonsense words. Participants study one of the lists for five minutes, solve math
problems for five minutes, then write all the words they recall from the list. The
participants' score is the number of words they correctly recalled.
number of words on the lists CORRECT ANSWERS constant
Professor Nakum designs an experiment to test the effect of word familiarity on
memory. She creates three lists with 30 words each: common, uncommon, and
nonsense words. Participants study one of the lists for five minutes, solve math
