Designing a Research Study

Author(s):  
Jacqueline M. Dewar

Chapter 3 examines basic considerations of education research design, such as whether or not to have experimental and control groups. Because many scholarship of teaching and learning (SoTL) questions arise in situations where it is not possible to have a control group, a number of other options are presented. The taxonomy of SoTL questions—What works? What is? What could be?—and frameworks such as “decoding the disciplines” and “threshold concepts” are used to suggest different ways to conduct an investigation. The importance of aligning the evidence with the research question and choosing an appropriate measure of change are also considered. The chapter closes with a discussion of the requirement to obtain human subjects clearance in order to make the results of a SoTL study public.

2020 ◽  
Vol 9 (1) ◽  
pp. 183-189
Author(s):  
Mamik Ratnawati ◽  
Monika Sawitri Prihatini ◽  
Heni Maryati ◽  
Ririn Probowati ◽  
Fitri Firranda Nurmalisyah ◽  
...  

The development of children under five is very important part. Various forms of disease, malnutrition, lack of and love stimulation at this age will lead a negative impact that persists until adulthood even to old age. The purpose of this study is to determine the differences in language skills of children with the treatment of story telling methods without story telling. The method this study used quasy experiment with pre test – post test design of treatment and control group. A sample of 50 children in the Nusantara and Kasih Bunda play ground in Sudimoro Village, Megaluh, Jombang. Sampling was carried out using a simple ramdom sampling. The results of study found that treatment group had an influence of story telling on language skills in pre-school children, whereas there were no differences in story telling of language skills in the treatment and control groups.  


2021 ◽  
Vol 2021 ◽  
pp. 1-11
Author(s):  
Christian Basil Omeh ◽  
Chijioke Jonathan Olelewe

Education prepares one for the world of work; hence, the adoption of the innovative instructional approach employed in the process of teaching and learning is key to the attainment of this goal. To mitigate students’ poor achievement in computer programming (CP), innovative pedagogy (IP) was adopted to make students become active learners in classroom learning. In this study, a quasi-experimental design was used and nonrandomized the subject with pretest and posttest. Students (N = 145) were nonrandomized to the treatment and control groups. The researchers conducted a repeated measure of analysis of variance to determine the change between the experimental and control groups. Students’ attributes were tested for differences by comparing categorical data with chi-square statistics. The interaction effect was determined using an analysis of covariance. The results revealed that the experimental group’s CP achievement test results outperformed those of the control group at posttest and retention tests. Furthermore, the findings of the study show that there is no significant difference in students’ academic achievement across ability levels and gender. Also, there is no interaction between the pretest and the IP. The study, therefore, recommends that computer educators should adopt innovative teaching practices in their day-to-day teaching since it is more creative, learner-centered, and improved student engagement.


Author(s):  
Jacqueline M. Dewar

Chapter 5 describes the use of surveys in scholarship of teaching and learning (SoTL) studies. Topics include how to design a survey, the reliability and validity of surveys, and response rates and how to improve them. The chapter also includes a detailed discussion of a special type of survey called a knowledge survey that is used to measure students’ confidence in their knowledge of disciplinary content. Multiple uses for knowledge surveys are described: a means to assess changes in student learning, a way to improve course organization and coordination across multiple sections, and as guide through the course material for students. The importance of a survey being a good match for the type of research question—What works? What is? What could be?—is emphasized. Many examples are given of studies of student learning in science, technology, engineering, and mathematics (STEM) fields that employed surveys.


Genes ◽  
2019 ◽  
Vol 10 (8) ◽  
pp. 576 ◽  
Author(s):  
Boakari ◽  
Ali ◽  
Dini ◽  
Loux ◽  
Fernandes ◽  
...  

High blood urea nitrogen (BUN) decreases fertility of several mammals; however, the mechanisms have not been investigated in mares. We developed an experimental model to elevate BUN, with urea and control treatments (7 mares/treatment), in a crossover design. Urea-treatment consisted of a loading dose of urea (0.03 g/kg of body weight (BW)) and urea injections over 6 hours (0.03 g/kg of BW/h). Control mares received the same volume of saline solution. Blood samples were collected to measure BUN. Uterine and vaginal pH were evaluated after the last intravenous infusion, then endometrial biopsies were collected for RNA-sequencing with a HiSeq 4000. Cuffdiff (2.2.1) was used to identify the differentially expressed genes (DEG) between urea and control groups (false discovery rate-adjusted p-value < 0.1). There was a significant increase in BUN and a decrease of uterine pH in the urea group compared to the control group. A total of 193 genes were DEG between the urea and control groups, with five genes identified as upstream regulators (ETV4, EGF, EHF, IRS2, and SGK1). The DEG were predicted to be related to cell pH, ion homeostasis, changes in epithelial tissue, and solute carriers. Changes in gene expression reveal alterations in endometrial function that could be associated with adverse effects on fertility of mares.


Author(s):  
Duran Özkök ◽  
Ethem Akyol

This study was conducted to determine the effects of Bayvarol®, Fumidil-B®, Neo-Terramycin® on adult honeybee lifespan. Total twenty honeybee colonies were used and randomly divided into four groups (each group consisted of five colonies). Experimental groups: Bayvarol ®, Fumidil-B® and Neo-Terramycin® were treated to first, second and third groups, respectively. No treatment was done to forth group taken as control group. A hundred one day old worker bees were taken from each group and marked with different colors and numbered on the thorax. After the marked, all worker bees were given into the observation hive. Marked worker bees were controlled and counted daily. Statistical analysis of data was done by variance analysis method and between groups comparisons were done with Duncan's multiple range tests. Average lifespans of the first, second, third and control groups were 44.97±4.90, 46.86±6.56, 45.38±6.12 and 47.72±6.06 days, respectively. There were found statistically significant differences among average lifespan of first, second, third and control groups (P


2018 ◽  
Vol 57 (1) ◽  
pp. 17-27
Author(s):  
Zahoor Ul-Haq ◽  
Bushra Ahmed Khurram

This study was undertaken to investigate the outcome of using the activity based learning method on the development of writing skills of students of grade 6. The study used pretest post-test equivalent group design. 50 students were randomly selected from a government school as sample for this study. They were divided into experimental and control groups based on the scores they achieved in pre-test. Students in the experimentalgroup received instruction through activity based method of learning. In contrast, the traditional method of teaching writing was used for teaching the control group. A comparison of pre- and post-test scores on writing measure evidenced that the experimental group performed better that the control group on writing post-test. It was concluded that activities helped enhance the writing skills of the experimental group. This finding suggests that students of elementary level should be engaged in activity based learning to enhance their writing skills.


2018 ◽  
Vol 2 (11) ◽  
Author(s):  
Yuli Laraeni ◽  
Irianto Irianto ◽  
Abdul Salam

Intruduction: SMAN 7 Mataram was ranked first as the school with the highest number of female students suffering from anemia (68.4%). This research aimed to observe “breakfast time” model to improve knowledge, nutrient consumption, and Hb level of female students at SMAN 7 Mataram. Methods: It was quasi experimental research using randomized control group a pretest-posttest design. There were 20 samples (saturation sampling) grouped into two: experimental and control groups (ten students in each group). Results: Based on the result of univariate and bivariate analyses on variables studied i.e. knowledge, Hb level, and nutrient consumption consisting of energy, protein, fat, carbohydrate, Vitamin A, Vitamin C, folic acid, and Zink; after breakfast time model was implemented, there were significant effects on the student Hb level. Its average 11.2 gr% increased to 12.7 gr% (p


2015 ◽  
Vol 4 (3) ◽  
pp. 271 ◽  
Author(s):  
Abdus Salam ◽  
Anwar Hossain ◽  
Shahidur Rahman

<p align="center"><strong>Abstract</strong></p><p> </p><p>Games-based learning has captured the interest of educationalists and industrialists who seek to reveal the characteristics of computer games as they are perceived by some to be a potentially effective approach for teaching and learning. Despite this interest in using games-based learning, there is a dearth of studies context of gaming and education in third world countries. This study investigated the effects of game playing on performance and attitudes of students towards mathematics of Grade VIII. The study was undergone by implementing TGT technique for the experimental group and typical lecture-based approach for the control group. A same achievement test was employed as in both pretest and posttest, an inventory of attitudes towards mathematics were applied for the pretest and posttest on TGT experimental and control group, an attitude scale on computer games was employed for the TGT experimental group, a semi-structured interview for teacher and an FGD guideline for students were applied to serving the purpose of research objectives. After three-weeks of intervention, it had been found out that TGT experimental group students had achieved a significant learning outcome than lecture based control group students. Attitude towards mathematics were differed to a certain positive extent on TGT experimental group. On the basis of findings of this study, some recommendations were made to overcome the barriers of integrating web-based game playing in a classroom.</p>


Author(s):  
Abas Ghaysouri ◽  
Golbahar Iri ◽  
Amirhosein Meisami ◽  
Milad Borji ◽  
Behrouz Soltany

Given the importance of relieving pain and disability experienced by the patients, the present study aimed to study the Effects of topical olive oil on the pain intensity among patients with knee osteoarthritis. The patients were randomly assigned into the experimental (28 patients) and control groups (27 patients). Firstly, in tropical olive oil (TOO) group, a high-quality olive oil, branded as Famila was used and in the control group, Diclofenac gel was applied. In experimental groups, 5 drops of herbal oils were applied to the knee thrice a day at morning, noon and evening and the knees were covered with a nylon sheet for more absorption. The patients were followed up for 4 weeks and their capability and pain intensities were evaluated prior the study, during the first week, the second week and the fourth week with Visual Analogue Scale. Data were analyzed using descriptive and analytical tests by SPSS V. 16 software. According to the findings, also the Mean (SD) pre-intervention Pain score in experimental group A was 8.10(0.91), which decreased to 1.78(0.78) after the intervention and in the control group from 8.55(0.69) to 3.85(0.98). Due to the greater effect of olive oil compared to Diclofenac gel on reducing pain of patients with KOA, it is recommended that patients use olive oil. Further studies are also recommended.


2020 ◽  
Vol 2020 (5) ◽  
pp. 8-20
Author(s):  
Roman Leonard ◽  
Tat'yana Zaripova ◽  
Aleksandr Balahonov ◽  
Natal'ya Vdovina ◽  
Aleksandr Narovlyanskiy ◽  
...  

Renal anemia is one of the most common complications of chronic kidney disease (CKD) in cats, which significantly reduces their life quality. Most often, the mechanism of renal anemia development is associated with insufficiency of endogenous erythropoietin (EPO), or with a reduction in the life of red blood cells caused by uremic intoxication. Since anemia increases the severity of renal hypertension and other CKD symptoms, the search for effective drugs that can stimulate erythropoiesis in CKD and do not have nephrotoxic properties is particularly relevant. The aim of the work was to study the effectiveness of Gamavit in the treatment regimen for cats with CKD compared with the standard treatment protocol. Active ingredients of Gamavit are sodium nucleinate and denaturated placenta extract. The study included 20 cats of different breeds aged from 5 to 16 years with CKD stage III-IV according to the IRIS classification, accompanied by anemia and a decrease in hematocrit in the range from 25 to 16%. Patients were randomly divided into 2 equal groups - control (n=10) and experimental (n=10) using the block randomization method. In the control group a standard nephroprotective therapy regimen was used. In the experimental group Gamavit was added to the standard regimen. Gamavit was administered at a dose of 0.5 ml/kg 1 time per day, at the same time, during 14 consecutive days (7 days i/v and 7 days s/c). The conditions for feeding and keeping animals of the experimental and control groups were identical. For feeding, we used a standardized serial diet ― Purina CatChow Adult with chicken/turkey/salmon. Access to drinking water ― ad libitum. The initial number of red blood cells, as well as the hematocrit index and hemoglobin level in the experimental and control groups were at the lower limit of the norm or below the reference values. During the study, in the experimental group of the patients, these indicators returned to normal after 2 weeks, while in the control group there were no significant changes. The statistically significant difference between the experimental and control groups remained until the end of the observation (p=0.001). Levels of creatinine and urea in the blood serum of the patients of both groups consistently high throughout the study, but in the experimental group a significant decrease in these indicators was found. The initial level of EPO in both groups was significantly lower than in healthy cats. During the experiment, it was not possible to reach the lower limit of the normal value, which allows us to conclude that the stimulation of erythropoiesis indicators in the experimental group, observed under the influence of Gamavit, is not associated with the stimulation of endogenous EPO production. Thus, the study revealed that Gamavit stimulates erythropoiesis in cats with CKD stage III-IV, significantly increasing the number of red blood cells, and the levels of hematocrit and hemoglobin. This effect, combined with a decrease in uremic intoxication values (creatinine and urea levels), lead to an improvement in the general condition of patients and regression in a number of important clinical manifestations. Since no nephrotoxic effects and undesirable interactions with drugs of standard nephroprotective therapy were detected in the process of this study, Gamavit can be recommended for widespread use in cats as one of the pathogenetic, symptomatic, and therapeutic and prophylactic drugs in the complex therapy of CKD at the preclinical and clinical stages of the disease.


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