NRS 433 Provide examples of experimental and nonexperimental research design

NRS 433 Provide examples of experimental and nonexperimental research design

Provide examples of experimental and nonexperimental research design. Contrast the levels of control applied to each.

Experimental research design is a type of quantitative research design that is highly controlled and to study cause and effect with independent and dependent variables. Experimental design is a true experiment in which the researcher manipulates one or more variables to come up with effect on other variables. Random assignment is used. There is a highly controlled environment and there is less chance of bias (McNiff and Petrick, 2022).  The type of experimental research chosen has a significant influence on the results of the experiment (Formplus, 2020).

An example of an experimental study is one done on the benefits of resistance training in physically frail elderly. The effect of resistance training alone or combined with multi modal exercise intervention on muscle hypertrophy, maximal strength, power output, functional performance and falls incidence in the frail elderly (Lopez et al., 2017). This is a highly controlled study where specific interventions or independent variables listed has on the frail elderly. The researcher here has control over the independent variable and can change it or alter it to see what changes in the variable being the frail elderly.

Non-experimental research is a type of research that doesn’t include manipulation of control or independent variables. In this research, researchers measure variables as they naturally occur without any further manipulation. This type of research is used when the researcher has no definite research question about a causal relationship between two different variables, and manipulation of the independent variable is impossible. They are used more often when a subject can’t be randomly assigned to a condition, when the subject of the research is about a casual relationship, but the independent variable can’t be manipulated, the research is broad and exploratory, it pertains to a non-casual relationship between variables, and there is limited information that can be accessed about the research subject (Formplus, 2022).

An example of a non-experimental study would be research that carries out a study on ammonia to determine its characteristics, behavior and nature. There is no manipulation here of the control. Ammonia is measured as it naturally occurs without any further manipulation. This study looks at ammonia without direct control. There is no manipulated independent variables so this is non-experimental (Formplus, 2022).




Formplus. “Experimental vs Non-Experimental Research: 15 Key Differences.” Formplus, 25 June 2020,


McNiff, Pamela and Petrick, Melissa (Grand Canyon University (Ed.). (2022). Nursing research: Understanding methods for best practice (2nd ed.).

Experimental research designs involve manipulating one or more variables and observing how the changes have an impact on other variables. Experimental designs typically have high levels of control; the researcher has extensive control over the variables being studied and can modify them to achieve desired results.

Nonexperimental designs, on the other hand, are those in which the researcher observes the variables as they naturally occur without changing any of the variables. Nonexperimental designs typically have limited levels of control; the researcher has little influence over the variables being studied and can only watch them as they naturally occur.

Randomized controlled trials, in which participants are randomly assigned to various treatment groups, and quasi-experimental designs, in which the researcher does not have complete control over the assignment of participants to treatment groups, are two examples of experimental research designs.

Observational studies, in which the researcher just watches participant activity without getting involved, and surveys, in which participants are questioned about their ideas or activities, are two examples of nonexperimental research designs. The fundamental benefit of experimental designs is that they enable the researcher to draw conclusions about causality, i.e., that the manipulation of the study variables was what led to the observed changes in the other variable.

Nonexperimental designs typically need less money and time to implement than experimental designs, which is their principal advantage.


Miller, C.J., (2020). Experimental and quasi-experimental designs in implementation research.

Navarro, D. (2019, January 11). 2.5:

Experimental and Non-experimental Research – Statistics Libre Texts. Statistics LibreTexts;

Click here to ORDER an A++ paper from our Verified MASTERS and DOCTORATE WRITERS: NRS 433 Provide examples of experimental and nonexperimental research design 

No experimental designs; use hypothesis, and it falls into three categories which are quasi-experimental, single variable and correlational.
Epidemiological studies are an example of a non-experimental design in which data is gathered through records or self-reports. The design has no manipulation or control of  variables  as compared to experimental designs that use controls to obtain reliable strong evidence, (Sabhudi,2019)

Experimental research designs result from scientific-based approaches towards the manipulation of one or more variables. In an experiment, there is the comparison of a particular treatment to another different one. In a simple experiment,  reference is made to the control group which saves as a baseline against which the main experiment is compared. The conditions which are controlled or manipulated are called independent variables and the measured outcomes or observed are called dependent variables. So in a treatment experiment, the treatment conditions may vary depending on the experimental goal. Most health studies have used placebos for controlling experimental designs. Randomization can also be used as well as other procedures such as elimination,  matching, additional independent variables and statistical control, (Sabhudi,2019)


Methodological Issues in Management Research: Advances, Challenges and the Way Ahead, edited by Rabi N. Subudhi, and Sumita Mishra, Emerald Publishing Limited, 2019. ProQuest Ebook Central,

Both experimental and non-experimental research designs are important to researching different things. Experimental design is where the researcher has more control over the entire study (Navarro, 2022). This means that everything within the study, they can somewhat control and manipulate. A good example of this could be the effect of alcohol on the pancreas. To test this, you will have 2 patients, 1 patient will not have any alcohol consumption and 1 will receive alcohol at the amount needed.

When looking at non-experimental research, the researcher will not have as much control or manipulation over the study (Navarro, 2022). This means the researcher will have less control and whatever happens is going to happen. An example of this is if the researcher is looking for the effect of alcohol on the liver. 1 patient will consume alcohol and 1 will not. But since this is non-experimental, the researcher will have no control over variable factors such as how much Tylenol the patient consumes. So, say the patient consuming alcohol does not take Tylenol but the patient not consuming alcohol takes way too much Tylenol. Things like this can change the outcomes of the study.


Navarro, D. (2022). Experimental and non-experimental research. University of New South Wales.

Lopes Write Policy

For assignments that need to be submitted to Lopes Write, please be sure you have received your report and Similarity Index (SI) percentage BEFORE you do a “final submit” to me.

Once you have received your report, please review it. This report will show you grammatical, punctuation, and spelling errors that can easily be fixed. Take the extra few minutes to review instead of getting counted off for these mistakes.

Review your similarities. Did you forget to cite something? Did you not paraphrase well enough? Is your paper made up of someone else’s thoughts more than your own?

Visit the Writing Center in the Student Success Center, under the Resources tab in LoudCloud for tips on improving your paper and SI score.

Late Policy

The university’s policy on late assignments is 10% penalty PER DAY LATE. This also applies to late DQ replies.

Please communicate with me if you anticipate having to submit an assignment late. I am happy to be flexible, with advance notice. We may be able to work out an extension based on extenuating circumstances.

If you do not communicate with me before submitting an assignment late, the GCU late policy will be in effect.

I do not accept assignments that are two or more weeks late unless we have worked out an extension.

As per policy, no assignments are accepted after the last day of class. Any assignment submitted after midnight on the last day of class will not be accepted for grading.


Communication is so very important. There are multiple ways to communicate with me:

Questions to Instructor Forum: This is a great place to ask course content or assignment questions. If you have a question, there is a good chance one of your peers does as well. This is a public forum for the class.

Individual Forum: This is a private forum to ask me questions or send me messages. This will be checked at least once every 24 hours.

Important information for writing discussion questions and participation

Welcome to class

Hello class and welcome to the class and I will be your instructor for this course. This is a -week course and requires a lot of time commitment, organization, and a high level of dedication. Please use the class syllabus to guide you through all the assignments required for the course. I have also attached the classroom policies to this announcement to know your expectations for this course. Please review this document carefully and ask me any questions if you do. You could email me at any time or send me a message via the “message” icon in halo if you need to contact me. I check my email regularly, so you should get a response within 24 hours. If you have not heard from me within 24 hours and need to contact me urgently, please send a follow up text to

I strongly encourage that you do not wait until the very last minute to complete your assignments. Your assignments in weeks 4 and 5 require early planning as you would need to present a teaching plan and interview a community health provider. I advise you look at the requirements for these assignments at the beginning of the course and plan accordingly. I have posted the YouTube link that explains all the class assignments in detail. It is required that you watch this 32-minute video as the assignments from week 3 through 5 require that you follow the instructions to the letter to succeed. Failure to complete these assignments according to instructions might lead to a zero. After watching the video, please schedule a one-on-one with me to discuss your topic for your project by the second week of class. Use this link to schedule a 15-minute session. Please, call me at the time of your appointment on my number. Please note that I will NOT call you.

Please, be advised I do NOT accept any assignments by email. If you are having technical issues with uploading an assignment, contact the technical department and inform me of the issue. If you have any issues that would prevent you from getting your assignments to me by the deadline, please inform me to request a possible extension. Note that working fulltime or overtime is no excuse for late assignments. There is a 5%-point deduction for every day your assignment is late. This only applies to approved extensions. Late assignments will not be accepted.

If you think you would be needing accommodations due to any reasons, please contact the appropriate department to request accommodations.

Plagiarism is highly prohibited. Please ensure you are citing your sources correctly using APA 7th edition. All assignments including discussion posts should be formatted in APA with the appropriate spacing, font, margin, and indents. Any papers not well formatted would be returned back to you, hence, I advise you review APA formatting style. I have attached a sample paper in APA format and will also post sample discussion responses in subsequent announcements.

Your initial discussion post should be a minimum of 200 words and response posts should be a minimum of 150 words. Be advised that I grade based on quality and not necessarily the number of words you post. A minimum of TWO references should be used for your initial post. For your response post, you do not need references as personal experiences would count as response posts. If you however cite anything from the literature for your response post, it is required that you cite your reference. You should include a minimum of THREE references for papers in this course. Please note that references should be no more than 5 years old except recommended as a resource for the class. Furthermore, for each discussion board question, you need ONE initial substantive response and TWO substantive responses to either your classmates or your instructor for a total of THREE responses. There are TWO discussion questions each week, hence, you need a total minimum of SIX discussion posts for each week. I usually post a discussion question each week. You could also respond to these as it would count towards your required SIX discussion posts for the week.

I understand this is a lot of information to cover in 5 weeks, however, the Bible says in Philippians 4:13 that we can do all things through Christ that strengthens us. Even in times like this, we are encouraged by God’s word that we have that ability in us to succeed with His strength. I pray that each and every one of you receives strength for this course and life generally as we navigate through this pandemic that is shaking our world today. Relax and enjoy the course!

Hi Class,

Please read through the following information on writing a Discussion question response and participation posts.

Contact me if you have any questions.

Important information on Writing a Discussion Question

  • Your response needs to be a minimum of 150 words (not including your list of references)
  • There needs to be at least TWO references with ONE being a peer reviewed professional journal article.
  • Include in-text citations in your response
  • Do not include quotes—instead summarize and paraphrase the information
  • Follow APA-7th edition
  • Points will be deducted if the above is not followed

Participation –replies to your classmates or instructor

  • A minimum of 6 responses per week, on at least 3 days of the week.
  • Each response needs at least ONE reference with citations—best if it is a peer reviewed journal article
  • Each response needs to be at least 75 words in length (does not include your list of references)
  • Responses need to be substantive by bringing information to the discussion or further enhance the discussion. Responses of “I agree” or “great post” does not count for the word count.
  • Follow APA 7th edition
  • Points will be deducted if the above is not followed
  • Remember to use and follow APA-7th edition for all weekly assignments, discussion questions, and participation points.
  • Here are some helpful links
  • Student paper example
  • Citing Sources
  • The Writing Center is a great resource