Nobody downloaded yet

Quasi-Experimental Designs - Assignment Example

Comments (0) Cite this document
Summary
Quasi-Experimental Designs Name: Institution: Part I Question #1 i). A recommended type of quasi-experimental design for this study would be the non-equivalent groups design. iv). Possible confounds in the study would be presented by the fact there might be differences between the two groups of students other than the administration of the weekly quizzes…
Download full paperFile format: .doc, available for editing
GRAB THE BEST PAPER95.7% of users find it useful
Quasi-Experimental Designs
Read TextPreview

Extract of sample "Quasi-Experimental Designs"

Download file to see previous pages vi). Single-case designs or single-case research designs are used to studies that factor in individual organism variances than group designs, which emphasize on mean averages of groups (Jackson, 2013). Single-case designs are used where a test subject’s behavioral trends are variables of significance in an experiment. This research design is also used in evaluating the effect of treatments on an individual or personal attributes in applied research (Jackson, 2013). viii). A multiple-baseline research design involves the measurement of multiple persons, settings or traits before and after assignment to experimental treatment. Treatments are administered, at different times, to ensure that changes are due to treatment and not by chance (Jackson, 2013). Reversal experimental design involves measurement of behavior or traits during a baseline periods (A), at the introduction of treatments (B), reinstatement of conditions preceding baseline period (A) and during of the reintroduction of the treatment (B) (Jackson, 2013). Question #2 Quasi-experiments are used, in empirical studies, to estimate the impact and influence of an intervention or treatment on its target sample population, and they do not use random assignment (Jackson, 2011). Quasi-experimental designs allow a researcher to control the assignment to the treatment condition, using some criterion other than random assignment (Jackson, 2012). This is in the sense that a researcher controls the assignment to the treatment condition, and can in some cases, a researcher can lack control over the assignment to the treatment condition. Quasi-experimental designs are predisposed to quality concerns regarding internal validity because treatment and control groups, in some instances cannot be comparable at baseline levels. This is unlike random experiments where either subjects have a chance of being assigned to the comparison or the intervention group (Jackson, 2012). The advantages of quasi-experimental designs are that they are used when randomized experimental designs are impractical and unethical. Quasi experiments are easier to prepare than ‘true experimental designs’ which require random assignment to participants or subjects (Jackson, 2012). The use of quasi-experimental designs eliminates or diminishes threats to external validity because natural environments are not susceptible to the same problems of artificiality compared to well-controlled laboratory setting. Quasi-experimental designs allow their findings to be applied to other subjects and settings, creating a precedent where generalizations can be made about populations (Jackson, 2012). This is because this design type is considered a natural experiment, which makes its findings applicable to other settings and participants. Quasi experiments are efficient especially in longitudinal research studies, which involve longer experimental periods, and can be followed up in different environmental settings. Quasi-experimental designs give the researcher manipulation options to choose from. This is in the sense that, in natural experiments, manipulations occur on their own accord because researchers have no control over their occurrence. The use of self-selected groups in this design type eliminates the chance of conditional and ethical concerns in the process of conducting the experiment (Jackson, 2012). Estimates or findings in quasi-experimenta ...Download file to see next pagesRead More
Cite this document
  • APA
  • MLA
  • CHICAGO
(“Quasi-Experimental Designs Assignment Example | Topics and Well Written Essays - 1750 words”, n.d.)
Quasi-Experimental Designs Assignment Example | Topics and Well Written Essays - 1750 words. Retrieved from https://studentshare.org/statistics/1482229-quasi-experimental-designs
(Quasi-Experimental Designs Assignment Example | Topics and Well Written Essays - 1750 Words)
Quasi-Experimental Designs Assignment Example | Topics and Well Written Essays - 1750 Words. https://studentshare.org/statistics/1482229-quasi-experimental-designs.
“Quasi-Experimental Designs Assignment Example | Topics and Well Written Essays - 1750 Words”, n.d. https://studentshare.org/statistics/1482229-quasi-experimental-designs.
  • Cited: 0 times
Comments (0)
Click to create a comment or rate a document

CHECK THESE SAMPLES OF Quasi-Experimental Designs

Quasi-Experimental Designs

...? Application of Quasi Experimental Designs: A Case Wise Study Research designs are not only to be studied in theory; but they do have an important role to play in deciding the way data collected for a study will be interpreted. The research design helps us identify the strengths and weaknesses of the study and the extent to which the results of a particular study are applicable in said situations. In the succeeding examples; the methodology helps us understand how to interpret the results of the studies. Study 1 demonstrates that women perform more poorly, on average, than men perform on the mathematics section of the Scholastic Aptitude Test (SAT). ...
1 Pages(250 words)Essay

Experimental and quasi-experimental design

...? Experimental and Quasi-Experimental Design Advantages and Disadvantages of Experimental Design There are various advantages of experimental design, with the first advantage being the creation of a cause-effect relationship. This design gives researchers or investigators sufficient control to establish and analyze an effective relationship. By setting up experiments and executing them, investigators can find the real reason for different occurrences (Frankfort & Nachmias, 2008). This enhances the understanding of reasons why events happen, and helps predict any future behaviors. It provides insights that may be used to bring results in respect of an immediate concern. For example, by experimenting with different teaching methods... children...
4 Pages(1000 words)Term Paper

Quasi-Experimental Designs

...? Quasi-Experimental Designs Quasi-Experimental Designs: Assignment Question The single group posttest design only shall apply to the study, which attempts to indicate the effectiveness of weekly quizzes in improving student learning (Trochim & Donnelly, 2008). Question 2 The professor should use the single group pretest/posttest design to assess the effectiveness of the weekly quizzes. The professor should administer the quizzes to the section of the class twice. Conducting first assessment takes place before administering weekly quizzes while the second assessment is done after the administration of...
5 Pages(1250 words)Essay

Experimental and Quasi-Experimental Reasearch with Hypothesis

...Experimental and Quasi-Experimental Research Paper The paper is devoted to the research of the career assessment and will be based on the statistical instrumentation and methods. The aim of the work is to evaluate the level of hypothesis validity. Hypothesis Career assessment has become a valuable instrument for the University graduates in their attempt to find place in the labor market and good application of the knowledge acquired through the years of studies. However, the main hypothesis of the work is that the University graduates, who use various tools of career assessment, are better in their job search, than those graduates who avoid these assessments. We have created the group of 30 graduates, with equal experience... and...
4 Pages(1000 words)Essay

One-Way Experimental Designs

...Applied Assignment: One Way Experimental designs When researchers of a particular study were interested in the effectiveness of a particular treatment for insomnia, they decided to investigate the possible effects of psychological state on insomnia. In this case, fifty insomnia sufferers who responded to a newspaper advertisement were contacted, and each was given a pill with instructions to take it before going to sleep that night. The pill actually contained milk powder (a placebo). The participants were then randomly assigned to receive one of two sets of instructions about the pill. One half of the participants were told that the pill will make them feel "sleepy," and the other half are told that the...
1 Pages(250 words)Essay

Quasi-Experimental Designs

...Quasi-Experimental Designs According to the PowerPoint slides, quasi-experimental design is employed when there are two groups of people that cannotbe assigned randomly to other groups. Also, in this type of design the variables cannot be manipulated as they would be in other types of experiments and the variables are measured rather than manipulated (slides 4,6). In this case, there are four different studies that are important to assess as to their variables and how they would work. The first study that I chose is study one that demonstrates that women perform more poorly, on average, than men perform on the...
2 Pages(500 words)Essay

Experimental Designs I

...Experimental Designs I Experimental Designs I Question One 2. A randomized ANOVA involves random recording of observations from anexperiment. In particular, it is a process of analysis that assigns many levels of looked into factors to units experimented in an irregular manner (Gonzalez, 2008). However, in repeated measures ANOVA, each factor is depicted in every level of treatment and there is a response to every dependent factor after every treatment. One-way is applied in testing differences among more than one independent group. Particularly, this ANOVA is applied in testing for differences for more than three groups as t test can be applied for two groups. 4. It sets the rate of alpha error to the experiment error rate... the...
3 Pages(750 words)Statistics Project

Experimental Designs II

...Experimental design Chapter 10 questions Q Source df SS MS F A 60 60 0.3 B 2 40 20 0.1 A X B 2 90 45 0.225 Error 30 200 Total 35 390 Factorial notation The design’s factorial notation is 2 x 3. Number of conditions in the study The number of conditions in the study is six. Number of subjects in the study Number of subjects = total sum of squares’ degrees of freedom + 1. The total number of subjects is therefore 36. Significant main effects and interaction effects There is neither mains nor interactions effects due do the low computed F values. (Jackson, 2011; People, n.d.) Q.2 Source ...
3 Pages(750 words)Statistics Project

Strengths and weaknesses of quasi-experimental designs

...Strengths and weaknesses of quasi-experimental design Quasi-experimental design is an alternative to experimental design that is not generally applicable in all real life situations. Its major characteristics are the researcher’s inability to control the involved variables and it lacks the randomization property. This paper explores strengths and weaknesses of the design and looks into its advantages over classical experiments in conducting criminal justice research. Strengths and weaknesses of the quasi-experimental design One of the strengths of the quasi-experimental design is its wide applicability in real life situations. This makes it possible to study phenomenon that cannot be possibly studied under experimental design due... to...
2 Pages(500 words)Assignment

Discuss Quasi-Experimental Designs

...Discuss Quasi-Experimental Designs Discuss Quasi-Experimental Designs Part I Jackson Even Numbered Chapter Exercises(p.360) Question#2 I would recommend non-equivalent groups design as the preferred quasi-experimental design for the study. This is because the existing groups used for the weekly quizzes experiment are not divided and the research can not assign the participants randomly. Question #4 Some of the possible confounds in the study outlined in the answers above include history, maturation, instrumentation, test, regression, selection bias and...
5 Pages(1250 words)Coursework
sponsored ads
We use cookies to create the best experience for you. Keep on browsing if you are OK with that, or find out how to manage cookies.

Let us find you another Assignment on topic Quasi-Experimental Designs for FREE!

Contact Us