RM Final Exam with 100% complete
solutions
Counterbalancing is? - correct answer ✔✔strategically balancing a factor so effects cannot be attributed
to that factor
We find that studying increases exam scores. We want to test the conditions that might influence the
relationship between studying and exam scores. To do this, we need to manipulate what kind of variable
- correct answer ✔✔Moderating
To make a manipulation seem more natural you test one condition in half of the participants and the
other condition in the other half. You have: - correct answer ✔✔sacrificed power for ecological validity
Researchers observe that students who sit in the front get higher grades. You bring subjects into the lab
and randomly assign half to the front and half to the back of the room during a lecture. You test which
group gets higher grade on a test about the lecture. You have improved: - correct answer ✔✔Internal
validity
If you conclude that variables are related, when in fact there is no relationship in the real population, this
is a - correct answer ✔✔Type 1 error
If you conclude that variables are not related, when in fact there is a relationship in the real population,
this is a - correct answer ✔✔Type 2 error
I ran a research study on study habits in TAMIU and at LCC. By running the study in two locations, I have
improved - correct answer ✔✔External validity
How can we collect evidence about something we cannot see? - correct answer ✔✔Develop operational
definitions
, You are testing the correlation between traditional values and happiness. You find that while most
people with traditional values are very happy, one person with EXTREME traditional values is EXTREMELY
unhappy. You might face which statistical validity issue? - correct answer ✔✔Outliers
When examining the results of a multiple regression which of the following should be compared to
determine which predictor variables have the largest relationship to the criterion variable - correct
answer ✔✔Beta values
Which of the following conclusions can DR. Guidry draw about the number of friends one has and life
satisfaction based on her statistical analyses? - correct answer ✔✔The probability of her sample coming
from a zero association population is about 6%
The relationship is not statistically significant
Comparing all three correlations, Dr. Guidry will be most able to accurately predict life satisfaction from
the experience of daily stress because the relationship - correct answer ✔✔has a large effect size
To see if caffeine improves math skills..... What is the threat to internal consistency and how would they
solve it? - correct answer ✔✔A carryover effect could be solved by waiting longer between the coffee
and water condition
A criterion variable is also known as a variable - correct answer ✔✔dependent
Which type of sampling ensures that a part of the population is not systematically left out of the sample?
- correct answer ✔✔random
Why might a researcher choose snowball sampling over systematic sampling? - correct answer
✔✔External validity is not vital to the researcher's study
For her research methods class, Viri records heart rate while participants look at exam questions. This is
an example of what type of measurement? - correct answer ✔✔Physiological measurement
solutions
Counterbalancing is? - correct answer ✔✔strategically balancing a factor so effects cannot be attributed
to that factor
We find that studying increases exam scores. We want to test the conditions that might influence the
relationship between studying and exam scores. To do this, we need to manipulate what kind of variable
- correct answer ✔✔Moderating
To make a manipulation seem more natural you test one condition in half of the participants and the
other condition in the other half. You have: - correct answer ✔✔sacrificed power for ecological validity
Researchers observe that students who sit in the front get higher grades. You bring subjects into the lab
and randomly assign half to the front and half to the back of the room during a lecture. You test which
group gets higher grade on a test about the lecture. You have improved: - correct answer ✔✔Internal
validity
If you conclude that variables are related, when in fact there is no relationship in the real population, this
is a - correct answer ✔✔Type 1 error
If you conclude that variables are not related, when in fact there is a relationship in the real population,
this is a - correct answer ✔✔Type 2 error
I ran a research study on study habits in TAMIU and at LCC. By running the study in two locations, I have
improved - correct answer ✔✔External validity
How can we collect evidence about something we cannot see? - correct answer ✔✔Develop operational
definitions
, You are testing the correlation between traditional values and happiness. You find that while most
people with traditional values are very happy, one person with EXTREME traditional values is EXTREMELY
unhappy. You might face which statistical validity issue? - correct answer ✔✔Outliers
When examining the results of a multiple regression which of the following should be compared to
determine which predictor variables have the largest relationship to the criterion variable - correct
answer ✔✔Beta values
Which of the following conclusions can DR. Guidry draw about the number of friends one has and life
satisfaction based on her statistical analyses? - correct answer ✔✔The probability of her sample coming
from a zero association population is about 6%
The relationship is not statistically significant
Comparing all three correlations, Dr. Guidry will be most able to accurately predict life satisfaction from
the experience of daily stress because the relationship - correct answer ✔✔has a large effect size
To see if caffeine improves math skills..... What is the threat to internal consistency and how would they
solve it? - correct answer ✔✔A carryover effect could be solved by waiting longer between the coffee
and water condition
A criterion variable is also known as a variable - correct answer ✔✔dependent
Which type of sampling ensures that a part of the population is not systematically left out of the sample?
- correct answer ✔✔random
Why might a researcher choose snowball sampling over systematic sampling? - correct answer
✔✔External validity is not vital to the researcher's study
For her research methods class, Viri records heart rate while participants look at exam questions. This is
an example of what type of measurement? - correct answer ✔✔Physiological measurement
