Clicker Question HDFS 350 Flashcards
(25 cards)
Is there a difference between kids who grow up with parents who are divorced and those whose parents are married?
Which critical aspect is missing from this
research question?
A. Ages of kids
B. How to classify kids whose parents get remarried
C. DV
D. IV
C
Research question: Is there a link between TV watching and obesity?
What would be a valid directional hypothesis?
A. Higher TV watching is related to higher obesity
B. There is an association between TV watching and obesity
C. Higher TV watching is related to higher calorie consumption
A
What is your favorite type of
chocolate: milk, dark, or white
What is the type of scale?
A.Nominal
B.Ordinal
C.Interval
D.Ratio
Which type of research question would this fit?
Association or Differences?
A (differences)
Example 1: Link between TV watching and obesity
p = .067
What is the correct conclusion?
A. There is a significant link between TV watching and
obesity.
B. The link between TV watching and obesity is unclear.
C. There is not a significant link between TV watching and
obesity.
C
Imagine this was a question you were to answer:
How often do you use your phone while driving?
Never
Not often
Once-in-awhile
Frequently
Always
Is there anything unclear to you about answering this question?
A.No, it looks perfect
B.What does “use your phone” mean?
C.I didn’t understand the difference between the
response options
D.Both the question and the response options
D
Is there a difference between those who eat lots of veggies
and those who never eat them in terms of blood pressure?
IV: eat veggies or not; DV: blood pressure
Is the following survey item a good representation of the DV?
Have you ever been diagnosed with hypertension (high blood
pressure)? YES or NO
A.Yes, this fits
B.No, because it’s nominal scale
C.No, because it’s a different concept
D.Yes, because it’s quick to answer
E.More than one answer is true
E is best (B and C are true)
Is it possible to propose the same
statistical test for your differences
question and your association question?
A. Yes
B. No
C. It depends
B
Which t-test would we use for the following: IV is nominal
with 2 groups (yes top-sheet and no top-sheet) and DV is
ratio?
A. 1-sample t-test
B. 2-sample t-test
C. Paired sample t-test
B
Where do you look to know if the results of
our t-test is significant? (that the groups differ
in our DV, GRE score)
A.Levene’s test
B.t-score, two-sided p
C.Somewhere on the equal variances assumed row
B
You have planned to do a
Pearson’s r. You get a skewness
value of 3.2 for the DV and 1.2 for
the IV.
What should you do?
A.Run the alternative non-parametric test
B.Continue with your planned test
C.Run far far away
D.Find the skewness value by group
A
You create a survey to measure the regularity
of people’s dietary habits. You review the survey
items, which ask questions about every meal of
the day and snacks for every day of the week. On
its surface, the survey seems like a good
representation of what you want to test, so you
consider it to have high _____ validity.
A.construct
B.internal
C.convergent
D.face
D
A sick patient is seen in the ER by Dr.
Not-so-sure. They are fairly sure the patient
has appendicitis but would like a second
opinion. They ask Dr. Know-it-all to exam the
patient. Dr. Know-it-all fully agrees with the
diagnosis of appendicitis. What type of
reliability does this situation represent?
A. Parallel-forms reliability
B. Internal consistency
C. Inter-rater reliability
D. Test-retest reliability
C
You are trying to recode string
data (i.e., words) into numbers. You
go through the correct steps but for
some reason you cannot see the
new variable SPSS was to create.
What might have happened?
A.You missed recoding one of the response options
B.You put in one of the response options as lower-case but in the data the response option is capitalized.
C.You are looking at the first few variables and need to scroll to the end of the variable list.
D.A and B
E.All of the above
E
What is the difference between a
parametric and non-parametric test?
A.Parametric tests are only to be used for difference research
questions.
B.Non-parametric tests involve more assumptions.
C.Parametric tests can be used with ordinal DVs.
D.Parametric tests assume a normal distribution.
D
You are running a t-test to evaluate if there is a difference in a kid’s frustration tolerance when their parent is watching
them versus when their teacher is. You find that the distribution for the parent
condition is highly skewed and violates the normality assumption. Which test
should you run?
A. T-test
B. Mann-Whitney U
C. ANOVA
D. Kruskal-Wallis H
B
We find a non-significant effect but had low power to detect the effect. What type of
error is likely?
A.Type 1 error - false positive
B.Type II error – false negative
B
What is wrong with the following results section?
Our hypothesis was confirmed, t(21)=5.43, p<.05. Older adults scored
significantly higher than younger adults.
What is wrong?
A.Missing hypothesis
B.Wrong p-value format
C.Missing mean values for each group
D.A and C
E.A, B, and C
E
What does a d value of 1.1 mean?
A.The groups are 1.1 standard deviations apart.
B.The groups are 1.1 points apart.
C.There is a medium sized effect.
A
Figures and Tables
Which statement is true?
A. Tables are best used to present large amounts of data
B. Tables should include as little information as possible
(e.g., few numbers)
C. It is acceptable to provide different versions of the
same information in one paper (e.g., line and bar graph
of the same information)
D. The more tables and figures, the better
A
What should be used to
illustrate the results (i.e.,
effect size) of a t-test?
A.Table
B.Line graph
C.Scatterplot
D.Bar graph
D
Martin and his group looked at the association between alcohol use and GPA. They found a significant effect
and stated that “alcohol use leads to having a lower GPA”.
Is this an accurate statement?
A.Yes
B.No
B
Which statement is true about the discussion?
A. A discussion section should not introduce new references
B. A discussion section should only focus on the benefits of the
current study, not the limitations
C. A discussion section should only present past research
studies that are consistent with what was found in the current
study
D. A discussion section should provide ideas for next steps in the
research
D
You implemented a RCT of a healthy lifestyle program to prevent weight gain in older adulthood. You randomly assigned participants to
each group and collected pre-test information. You analyzed your pre-test data before beginning the program and found:
- Control Group:
Mean age: 80
Mean weight: 226 lbs.
Mean minutes: 10 min
Experimental Group:
Mean age: 65
Mean weight:160 lbs.
Mean minutes: 60 minutes
What can you conclude about the randomization process?
A.Randomization worked well – any change at post-test can be
reasonably attributed to the program
B.Randomization did not work well – it will be hard to attribute cause
B
Imagine you want to use the ideal design
for a clinical trial, but we can’t randomly
assign the participants. What is this design
called?
A.True Experimental
B.Quasi-experimental
B
