BIO 155 Quiz Questions
How many points will be deducted from student's total points for each unexcused absence?
5 points, even if the student makes it up by attending an alternate lab
While testing your hypotheses during the black box activity, what undesirable problems did the introduction of objects in the bins cause?
A potential bias towards thinking that the objects presented were the ones in the box, instead of deducing from your own explorations alone.
A theory is...
A well-substantiated explanation acquired through the scientific method and repeatedly tested and confirmed through observation and experimentation.
A survey will be given to 50 students randomly selected from the freshmen class at Dunbar High School, Lexington. What is the population?
All freshmen at Dunbar High School
The scientific inquiry process is best depicted as:
An interconnected series of steps.
Why was a pencil line used as a control (against the black pen line)?
Because it contains both the (black) color and creates an indentation, both of which we wanted to control for.
A good experiment will attempt to avoid:
Bias.
BIO 155 is a lab designed to go along with which of the following lecture courses?
Bio 155 is a standalone course, and was not designed to be allied with any specific course in biology.
Which of the following is true about descriptive versus inferential statistics?
Descriptive statistics are a good way to get an idea of what your data looks like.
When are makeup assignments to be completed?
Ideally before that particular assignment is graded and returned. For an unexcused absence, this could be as early as the next Monday, regardless of when your section meets.
You are trying to determine if a new management policy has changed the mean weight of lake trout from the previous size of 23 lbs. You sample the trout and find they have a mean weight of 26.3 lbs; after conducting statistical testing you obtain a p-value of 0.04. What is the best interpretation of this p-value?
If the weight of the fish did not change, then there is 4% probability of getting a mean weight of 26.3 lbs.
What does "peer-reviewed" mean and why is it important with respect to the primary literature?
It means several experts in the field have reviewed the paper, and is important to keep incomplete or questionable results from going to the press.
What should I do if I miss a lab for an inexcusable reason?
Look up the syllabus to figure out which other sections you can attend during the same week, and contact your TA asap with the times and request a make-up.
What is the best way to figure out the course schedule, due dates, and other course policy?
Look up the syllabus, and other info pages (due dates, FAQ page) on canvas
"Independent" is to "manipulate" as "dependent" is to ____________.
Measure
How many assignments from unexcused absences can be made up in BIO 155?
One, ideally made up within a week
In your course evaluations of this class, you will rate your teacher on a scale from 1-5. What type of variable is this?
Ordinal
Which process helps to ensure high-quality and significant scientific research?
Peer-review
In the termite class experiment, what was the primary reason for controlling for treatment order bias by alternating whether the termite started on either the control or treatment trial?
Reduce the effects of fatigue and sensitization to a particular treatment
Which of the following is not associated with the Nature of Science?
Science can solve problems regarding ideology and religion.
In the "what's in the box" experiment, we changed our prediction several times for objects in the box. It demonstrated:
Scientific ideas are subject to change.
Which of the following is NOT an example of a continuous variable?
Shape
Which of the following is an example of a generalized or working hypothesis?
Tall people are more prone to head injuries because they are closer to ceilings.
Rejecting null hypothesis indicates that ________________.
The alternative hypothesis is most likely true.
Impact factor of a journal primarily concerns:
The importance of the journal measured in average citations of the articles it publishes.
What does the p-value represent in a t-test?
The probability of obtaining the observed results if the null hypothesis is true.
Why was a t test used to analyze the data collected from the termite orientation behavior experiment?
There are only two levels of a categorical independent variable, and the dependent variable is continuous.
In the class experiment, why did we use the same termite for both the pen and pencil trials on a single sheet of paper?
To remove the effect of individual differences in termite behavior from confounding the results.
What kind of test should you do if you were comparing exam performances for two sections of BIO 155?
Two-sample t-Test
Which of the following will narrow a literature search in Web of Science?
Using AND between keywords
Which of the following sentence is correct about citation?
When discussing a concept while writing a scientific manuscript, you must cite it's source if its not an original concept.
Which of the following is considered an excused absence?
You are running a fever and throwing up and do decide to go to Student Health Services to get checked out.
How early can I take the pre-lab quiz?
You will have at least 48 hours to take the quiz (60 hours during some weeks ), and it will always close at 9 AM the day your section meets.
A hypothesis is...
a suggested explanation for an event, which can be tested.
A t-test is commonly used to test ___________.
if means of two samples are different from each other.
Scientist use ________________ to get a sample that is a good representative of the population.
random sampling techniques
We can __________________________ the null hypothesis.
reject or fail to reject
In the class experiment with termites, we tested if the termites were attracted to the ink line or pencil line. In our experiment, _______________ was the dependent variable, and ______________ was the independent variable.
time termites spent on either ink or pencil line; presence, or absence of ink.
