Experimental Projects MCQs
Experimental Projects MCQs
Answer these 70+ Experimental Projects MCQs and assess your grip on the subject of Experimental Projects.
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1: Why is a normally distributed sample mean necessary to apply the t-test?
A. It allows for the comparison of means between two groups.
B. It measures the variability of the data.
C. It assesses the normality of the data.
D. It tests for outliers in the data.
2: What is the Central Limit Theorem?
A. The standard deviation of the distribution is always equal to the variance.
B. A measure of how central a value is to a distribution.
C. States that with a large enough sample, the sample mean will be normally distributed.
D. The mean of the distribution is always equal to the median.
3: What is the final step in the scientific method?
A. Experimentation
B. Analysis
C. Data Collection
D. Conclusion
4: What is the conclusion of a scientific experiment?
A. Methodology of the experiment
B. Introduction of the experiment
C. Results of the experiment
D. Determination of whether the hypothesis should be accepted or rejected.
5: What is the control group?
A. Test subjects who are not taking the experimental treatment by choice.
B. Test subjects who are unaware of the study.
C. Test subjects who do not know they are receiving the experimental treatment.
D. Test subjects randomly assigned to not receive the experimental treatment.
6: What is a control variable?
A. A variable that changes during an experiment
B. The variable being tested in an experiment
C. The variable that is changed in an experiment
D. A variable that does not change during an experiment
7: What is another name for a control variable?
A. Extraneous Variable
B. Constant Variable
C. Manipulated Variable
D. Alternate Variable
8: What does the word "datum" mean?
A. A direction
B. The study of data
C. Facts, numbers, or values obtained in an experiment.
D. Data storage
9: What is the plural of "datum"?
A. Dats
B. Dattas
C. Data
D. Datums
10: What is the dependent variable also known as?
A. Independent variable
B. Moderating variable
C. Controlling variable
D. Responding variable
11: What is the definition of Double-Blind?
A. When neither the researcher nor the subject knows whether the subject is receiving the treatment or a placebo.
B. When the subject but not the researcher knows whether the subject is receiving the treatment or a placebo.
C. When the researcher but not the subject knows whether the subject is receiving the treatment or a placebo.
D. When both the researcher and the subject know whether the subject is receiving the treatment or a placebo.
12: In a double-blind study, _______.
A. The researcher knows but the subject does not know whether the subject is receiving the treatment or a placebo.
B. Both the researcher and the subject know whether the subject is receiving the treatment or a placebo.
C. Neither the researcher nor the subject knows whether the subject is receiving the treatment or a placebo.
D. The subject knows but the researcher does not know whether the subject is receiving the treatment or a placebo.
13: What is an empty control group?
A. A type of control group that does not receive any treatment, including a placebo.
B. A type of control group that only receives a placebo.
C. A type of control group that only receives a treatment.
D. A type of control group that receives both a treatment and a placebo.
14: What is an example of an extraneous variable?
A. The independent variable
B. The control variable
C. The dependent variable
D. The manufacturer of the glassware in a reaction
15: What is an extraneous variable?
A. The color of paper used to make a paper airplane.
B. Extra variables that might influence an experiment but are not accounted for or measured or are beyond control.
C. The independent variable.
D. The manufacturer of the glassware in a reaction.
16: What does it mean when one factor does not exert influence on another?
A. Interdependence
B. Swimming
C. Dependence
D. Independence
17: What does the term "independence" refer to in statistics?
A. When one factor does not exert influence on another
B. When two factors are not related
C. When one factor does not relating to another
D. When two factors are related
18: What is independent random assignment?
A. Consistently observing a study subject
B. Choosing whether or not to administer a treatment to a study subject
C. Giving all subjects in a study the same treatment
D. Randomly selecting whether a test subject will be in a treatment or control group.
19: What is meant by randomly selecting whether a test subject will be in a treatment or control group?
A. Non-random Sampling
B. Random Allocation
C. Independent Random Assignment
D. Random Sampling
20: What is the independent variable?
A. The variable that is not manipulated or changed by the researcher.
B. The variable that is affected by the independent variable.
C. The variable that is manipulated or changed by the researcher.
D. The variable that is measured by the researcher.
21: What is the term for different values of the independent variable?
A. Groups
B. Stimuli
C. Response
D. Levels
22: What is the independent variable in the following study?
A. Levels
B. Drug Doses
C. Different Values
D. Results
23: What is Inferential Statistics?
A. A method of collecting data by asking questions
B. A method used to draw conclusions from random data that has been collected and analyzed
C. Statistics (math) applied to infer characteristics of a population-based on a representative sample from the population.
D. The branch of statistics concerned with making predictions or decisions based on data
24: What is internal validity?
A. The number of participants in an experiment
B. When an experiment can accurately determine whether the independent variable produces an effect.
C. The length of time an experiment is conducted
D. The degree to which an experiment is free from error
25: What is the mean?
A. The median
B. The lowest score
C. The highest score
D. The average calculated by adding all the scores and then dividing by the number of scores.
26: What is the average calculated by adding all the scores and then dividing by the number of scores called?
A. Mean
B. Median
C. Mode
D. Range
27: What is the "no difference" or "no effect" hypothesis called?
A. Research hypothesis
B. Alternate hypothesis
C. Null set
D. Null Hypothesis
28: What are null results?
A. Type 2 errors
B. Type 1 errors
C. Results that disprove the null hypothesis
D. Results that do not disprove the null hypothesis
29: What does p < 0.05 mean?
A. That five times out of a hundred, you could expect this difference between the two groups purely by chance.
B. That the experimental treatment did indeed have an effect.
C. That ten times out of a hundred, you could expect this difference between the two groups purely by chance.
30: What is the value of p that indicates how often chance could account for the effect of the experimental treatment?
A. 0.001
B. 0.05
C. 0.01
D. 0.0001
31: What is a placebo?
A. A method of treatment containing the drug
B. The active ingredient in a drug
C. A fake treatment with no effect outside the power of suggestion
D. A drug trial conducted on test patients
32: Why might a researcher study large random samples taken from the population?
A. To estimate how the population would respond.
B. To find a small group of people
C. To learn about the sample
D. To study the entire population
33: If a researcher cannot gather data from the population, what can they do?
A. Study large random samples taken from the population.
B. Make an educated guess.
C. Ignore the problem.
D. Find a similar population to study.
34: What is the ability to observe differences or avoid making Type 2 errors called?
A. Margin of Error
B. Type 1 Error
C. Power
D. Type 2 Error
35: What does "random" mean?
A. Not selected
B. Following a pattern
C. Repeating
D. Selected or performed without following any pattern or method.
36: What is the definition for "results?"
A. The explanation or interpretation of experimental data.
B. The hypothesis being tested.
C. The experimental data itself.
D. The purpose of the experiment.
37: What is a simple experiment?
A. An experiment with multiple test subjects
B. An experiment with only one independent variable
C. An experiment with multiple dependent variables
D. A basic experiment designed to assess whether there is a cause and effect relationship or to test a prediction.
38: What is the minimum number of groups required for a controlled experiment?
A. 2
B. 1
C. 4
D. 3
39: What does blinding the researcher help prevent?
A. Bias when the results are analyzed.
B. Bias when the results are reviewed.
C. Bias when the results are collected.
D. Bias when the results are reported.
40: What does 'statistical significance' mean?
A. Results are said to be statistically significant
B. Observation, based on the application of a statistical test, that a relationship probably is not due to pure chance.
C. The probability is stated
D. A relationship that is most likely not due to chance
41: What is the t-test?
A. A measure of central tendency
B. A units of measurement
C. A statistical data analysis applied to experimental data to test a hypothesis.
D. A method of calculating probability
42: What is a t-test?
A. A method to compare two groups
B. Testing the surface area of a material
C. A way to determine confidence intervals
D. A statistical data analysis applied to experimental data to test a hypothesis
43: Which of the following is type I error?
A. Rejecting the null hypothesis when it is actually true
B. Accepting the null hypothesis when it is actually false
C. Accepting the null hypothesis when it is actually true
D. Rejecting the null hypothesis when it is actually false
44: If you set p < 0.05, what is the chance you could make a Type I error?
A. More than 5%
B. Equal to 5%
C. Less than 5%
D. Cannot determine
45: Type II Error Occurs when you ________ the null hypothesis.
A. Reject
B. Accept
C. Experimental conditions had an effect
D. Fail to find it statistically significant
46: What is Type II Error?
A. Occurs when you reject the null hypothesis, but it was actually false.
B. Occurs when you accept the null hypothesis, but it was actually true.
C. Occurs when you reject the null hypothesis, but it was actually true.
D. Occurs when you accept the null hypothesis, but it was actually false.
47: What is required for a medical marijuana research license?
A. A research project related to medical marijuana.
B. A project related to recreational marijuana
C. A project related to CBD oil.
D. A project related to industrial hemp
48: What is a Research Project?
A. Determining the best methods of cultivation
B. A discrete scientific endeavor to answer a research question or a set of research questions related to medical marijuana.
C. Researching the medical benefits of marijuana
D. Testing products for safety
49: What does experimental development mean?
A. Development that occurs through research and development.
B. Development that occurs through experimentation.
C. Development that occurs through trial and error.
D. Development that occurs through the acquisition, combination, and shaping of existing knowledge and skills.
50: What is the primary objective of experimental development?
A. To make further technical improvements on products, processes or services that are not substantially set.
B. To create new products, processes or services
C. To reduce the cost of products, processes or services
D. To make products, processes or services more efficient
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