Explain the difference between an experiment for the specificity of the recombinant-based assay for HCV (Hepatitis C Virus) and an experiment for the sensitivity of the recombinant-based assay for HCV.
In addition, what is the significance of having these two experiments as opposed to only one experiment.
In: Anatomy and Physiology
An experiment is conducted in which red light is diffracted through a single slit.
Then, each of the following alterations to the original experiment is made, one at a time, and the experiment is repeated. After each alteration, the experiment isreturned to its original configuration.
A The slit width is halved.
B The distance between the slits and the screen is halved.
C The slit width is doubled.
D A green, rather than red, light source is used.
E The experiment is conducted in a water-filled tank.
F The distance between the slits and the screen is doubled.
A. Which of these alterations decreases the angles at which the diffraction minima appear?
In: Physics
repeated measures experiments measure the same set of research participants two or more times while met subjects experiment study participants who unmatched on one or more characteristics which of the following are true for both a repeated measures experiment and a matched subjects experiment when used to compare two treatment conditions check all that apply a matched subjects experiment produced a t statistic with a deal of eight how many subjects participated in this study boy repeated measures experiment comparing two treatment conditions the T statistic has a dl411 how many subjects participating in this
In: Statistics and Probability
Outline your experiment. You will NOT have to actually perform the experiment, you are just creating the structure of the experiment you would perform to test whether your superstition (lucky shirt) is “true”.
Dependent variable - Whether or not you feel lucky.
Independent variable - Shirt ('Regular' or 'Lucky')
QUESTION: In one or two brief but clearly written paragraphs, describe how you would conduct this experiment. Include operational definitions, number of participants, where the experiment would take place (High School), and how you can be confident that the results are due to your manipulation of the independent variable.
In: Statistics and Probability
TRUE / FALSE to the questions below
1. The purpose of experimental research is to allow the researcher to control the situation
so that causal relationships among variables may be studied.
2. In a well-designed experiment, the control group and the experimental group consist of
the same people.
3. A laboratory experiment is an experiment conducted in a natural setting, often for a
long period of time.
4. A field experiment is an experiment conducted in an artificial setting that gives the
researcher almost complete control over the research setting.
5. A quasi-experimental design is an experimental design that fails to control adequately
for loss of external or internal validity.
In: Statistics and Probability
Match the description of each study with the scientific question being used. Use each once, not at all, or more than once.
A study determines the link between mother’s diet and birth defects.
[ Choose ] Correlation Experiment
A study enables us to predict student’s academic success based on knowledge of their performance on an intelligence test.
[ Choose ] Correlation Experiment
A study investigates the relationship between blood type and disease X.
[ Choose ] Correlation Experiment
A study looks into the relationship between college entrance exam scores and college success (grade point average).
[ Choose ] Correlation Experiment
A study measures the effects of a placebo versus a new treatment for depression.
[ Choose ] Correlation Experiment
Match the description of each study with the scientific question being used. Use each answer on the right only once.
A study looks at the relationship between marital arguments and marital satisfaction.
[ Choose ] Case Study Survey Experiment Naturalistic Observation Correlation
A double-blind study is conducted to determine the results of drinking and driving.
[ Choose ] Case Study Survey Experiment Naturalistic Observation Correlation
A study measures the attitudes of a college’s student body toward proposed changes at the college.
[ Choose ] Case Study Survey Experiment Naturalistic Observation Correlation
A study documents the details of a woman with multiple personalities.
[ Choose ] Case Study Survey Experiment Naturalistic Observation Correlation
A study documents (without further study) the behavior of teenagers at a mall.
[ Choose ] Case Study Survey Experiment Naturalistic Observation Correlation
In: Psychology
Calculate the cell potential, at 25oC, for the reaction
3 Zn(s) + 2 Cr+3(aq)[0.010 M] --> 3 Zn+2(aq)[0.020 M] + 2 Cr(s)
given,
Cr+3(aq) + 3e- --> Cr(s) . . . . . . . Eo= -0.74 V
Zn+2(aq) + 2e- --> Zn(s) . . . . . . Eo = -0.76 V
Question options:
|
-0.03 V |
|
|
+0.01 V |
|
|
+ 0.03 V |
|
|
-0.01 V |
|
|
+ 0.02 V |
In: Chemistry
In: Accounting
Santa Fe Retailing purchased merchandise “as is” (with no
returns) from Mesa Wholesalers with credit terms of 3/10, n/60 and
an invoice price of $17,500. The merchandise had cost Mesa $11,935.
Assume that both buyer and seller use a perpetual inventory system
and the gross method.
1. Prepare entries that the buyer records
for the (a) purchase, (b) cash payment within the discount
period, and (c) cash payment after the discount
period.
2. Prepare entries that the seller
records for the (a) sale, (b) cash collection within the
discount period, and (c) cash collection after the
discount period.
In: Accounting
In: Economics