Examining Teacher Candidates' Evolution of Teaching Belief

2020 ◽  
pp. 257-273
Author(s):  
Shikun Li
Keyword(s):  
Experimental Study ◽  
Research Design ◽  
Teacher Candidates ◽  
Internal Validity ◽  
Video Feedback ◽  
Dynamic Evolution ◽  
Structured Interviews ◽  
Significant Difference ◽  
Comprehensible Input ◽  
Quasi Experimental

By using video feedback as a treatment, this quasi-experimental study is aimed to capture the dynamic evolution process of teacher candidates' belief of comprehensible input. It compares the changes in teacher candidates' belief of comprehensible input among different feedback groups. A mixed method, which contains the pre and post surveys, semi-structured interviews, and micro-teaching assignments decoding, is used to boost the internal validity of the research design. An ANCOVA analysis was conducted through controlling different co-variances. The results suggest that after the treatment there is no statistically significant difference in teacher candidates' post-treatment belief of comprehensible input. This result is aligned with the patterns that were generalized from semi-structured interviews: 1) a lack of changes in the teacher candidates' belief of comprehensible input after receiving feedback, 2) an alignment between the teacher candidates' micro-teaching performances and their belief of comprehensible input, and (3) the teacher candidates' positive perceptions of the video feedback.

scholarly journals The Effectiveness of STEM Education Applied with a Distance Education Approach

2021 ◽  
Vol 16 (19) ◽  
pp. 180
Author(s):  
Murat Tezer ◽  
Natalia A. Orekhovskaya ◽  
Elena F. Shaleeva ◽  
Svetlana A. Knyazeva ◽  
Julia A. Krokhina
Keyword(s):  
Experimental Study ◽  
Distance Education ◽  
Stem Education ◽  
Teacher Candidates ◽  
Control Group ◽  
Research Information ◽  
Significant Difference ◽  
Quasi Experimental ◽  
And Mathematics ◽  
Experimental Group

In this research, information about Science, Technology, Engineering and Mathematics (STEM) and Distance education was given to prospective sci-ence teachers and the integration of STEM into courses was emphasized. On the other hand, an experimental study was conducted to support the re-search on STEM Education and distance education. The study group of this research consisted of 328 science teacher candidates studying in the 4th grade of university. Some of these students were randomly selected as the experimental group and the others as the control group. In the study carried out in the science laboratory course, while the course was taught according to STEM Education and Distance Education in the experimental group; In the control group, the lessons continued as normal. The application in ques-tion was carried out based on a quasi-experimental study. The study was implemented during the 2020-2021 fall semester. Before the application, the learning level test, which was valid and reliable, was applied regarding the subjects. As a result of the application, a significant difference was found between the students in the experimental group and the students in the control group in favor of the experimental group in which STEM Educa-tion and Distance Education were applied. In line with these results, STEM Education and Distance Education were found to be effective in improving the success of university teacher candidates, and it was added to the re-search results.

scholarly journals Does Ramadan Fasting Affect Spirometric Data of Healthy Adolescents?

2019 ◽  
Vol 13 ◽  
pp. 117955651986228
Author(s):  
Selma Ben Fraj ◽  
Amira Miladi ◽  
Fatma Guezguez ◽  
Mohamed Ben Rejeb ◽  
Jihène Bouguila ◽  
...  
Keyword(s):  
Experimental Study ◽  
Vital Capacity ◽  
Forced Expiratory Volume ◽  
Healthy Male ◽  
Ramadan Fasting ◽  
Male Adolescents ◽  
Significant Difference ◽  
Quasi Experimental ◽  
Expiratory Flow ◽  
Healthy Males

Purpose: Several studies raised the effects of Ramadan fasting on healthy adults spirometric data, but none was performed in children. The aim of this study was to compare the spirometric data of a group of faster adolescents (n = 26) with an age-matched non-faster one (n = 10). Methods: This comparative quasi-experimental study, including 36 healthy males aged 12 to 15 years, was conducted during the summer 2015 (Ramadan: June 18 to July 16). Three sessions (Before-Ramadan [Before-R], Mid-Ramadan [Mid-R], After-Ramadan [After-R]) were selected for spirometry measurements. Spirometry was performed around 5.5 to 3.5 h before sunset and the spirometric data were expressed as percentages of local spirometric norms. Results: The two groups of fasters and non-fasters had similar ages and weights (13.35 ± 0.79 vs 12.96 ± 0.45 years, 46.8 ± 9.2 vs 41.7 ± 12.6 kg, respectively). There was no effect of Ramadan fasting on forced vital capacity (FVC), forced expiratory volume in 1 s (FEV1), FEV1/FVC, peak expiratory flow, and maximal mid-expiratory flow. For example, during the Before-R, Mid-R, and After-R sessions, there was no significant difference between the fasters and non-fasters mean FVC (101 ± 11 vs 99 ± 14, 101 ± 12 vs 102 ± 14, 103 ± 11 vs 104 ± 13, respectively) or FEV1 (101 ± 13 vs 96 ± 16, 98 ± 11 vs 97 ± 16, 101 ± 10 vs 98 ± 16, respectively). Conclusions: Ramadan fasting had no interaction effect with the spirometric data of Tunisian healthy male adolescents.

scholarly journals Dietary lifestyle modifications for vitiligo patients

2019 ◽  
Vol 10 (4) ◽  
pp. 45
Author(s):  
Sahar A. Abd-El Mohsen ◽  
Azhar A. Mohamed
Keyword(s):  
Research Design ◽  
Rural Areas ◽  
P Value ◽  
University Hospitals ◽  
Lifestyle Modifications ◽  
Dermatology Department ◽  
Patient Interview ◽  
Significant Difference ◽  
Post Test ◽  
Quasi Experimental

Background and objective: Changing the patient lifestyle as regarding diet well helped in vitiligo patient cure. Aim: to examine the effect of applying dietary instructions on dietary lifestyle modifications of vitiligo patients.Methods: Research design: Quasi experimental research design with one group (Pre/Post-test) was utilized in this study. Setting: the study was conducted in the ultraviolet unit at the Dermatology Department of Asyut University Hospitals. Study tool: Structured patient interview questionnaire sheet. It included two parts: Part 1: Assessment of patient’s sociodemographic variables. Part 2: Dietary pattern assessment: derived from Patient Life Style Pattern Assessment Sheet (PLSPAS) for Vitiligo.Results: The mean age of the studied sample was (mean ± SD 34.62 ± 12.35), 51.6% were female, 70% were living in rural areas, a highly statistically significant difference in the total mean knowledge scores between pre and post application of the dietary instructions (p value = .002).Conclusions: The present study concluded that there was a great improvement in the dietary lifestyle pattern of the studied sample after application of dietary instructions. Recommendations: Replication of the study on a larger probability sample from different geographical locations for generalization of the results. Printing copies of the dietary instructions for dissemination among all vitiligo patients attending the dermatology ward for treatment or follow-ups.

Internal Validity of Group Experimental Research

1983 ◽  
Vol 4 (3) ◽  
pp. 77-83
Author(s):  
Jean R. Harber
Keyword(s):  
Research Design ◽  
Experimental Research ◽  
Internal Validity ◽  
Experimental Designs ◽  
Causal Relationships ◽  
Control Groups ◽  
Quasi Experimental ◽  
Research Studies

This article stresses the importance of controlling extraneous variables when studying educational problems. Various types of research studies are described. The experimental research design, which is ideally suited to detecting causal relationships if proper controls are used, and quasi-experimental procedures, which are employed when true experimental designs cannot be used, are discussed. Threats to internal validity are presented and hypothetical examples are given to illustrate these threats and the means of controlling them. The importance of utilizing control groups is illustrated.

Applying Dictologloss Technique on Students’ Narrative Text: A Quasi Experimental Study

2020 ◽  
Vol 2 (2) ◽  
pp. 1
Author(s):  
Mohammad Ridho Kholid ◽  
Dhanan Abimanto ◽  
Wiwied Pratiwi
Keyword(s):  
Experimental Study ◽  
Experimental Design ◽  
Null Hypothesis ◽  
Alternative Hypothesis ◽  
Narrative Text ◽  
Test Design ◽  
Narrative Writing ◽  
Significant Difference ◽  
Post Test ◽  
Quasi Experimental

This article was to find out about the effectiveness of applying dictogloss technique on students’ narrative text. A Quasi-Experimental design was used in this method, with using pre-test and post test design. Subject of this research was at the eleventh grade  at state senior high 10 Bandar Lampung.  The result of this study showed that the value of to  (tobservation ) was 5.2. The value of t table with degree of freedom 38 in significance degree 5 % was 2.02 and in significance degree 1% was 2.71. It indicated that to was higher than or 2.02 < 5.26 > 2.71. for those analysis, the null hypothesis (Ho) was rejected and t alternative hypothesis (Ha) was accepted. Hence, it was inferred that there were significant difference between students’ narrative writing score who were taught by dictoglos technique. Keywords: Dictogloss Technique, Experimental Design, Narrative Text

The effects of problem-based learning (PBL) on the academic achievement of students studying ‘Electrochemistry’

2017 ◽  
Vol 18 (1) ◽  
pp. 78-98 ◽  
Author(s):  
Tuğçe Günter ◽  
Sibel Kılınç Alpat
Keyword(s):  
Problem Based Learning ◽  
Correlation Coefficients ◽  
Control Group ◽  
Structured Interviews ◽  
Chemistry Teaching ◽  
Academic Achievements ◽  
Significant Difference ◽  
Post Test ◽  
Quasi Experimental ◽  
Experimental Group

This study investigates the effects of problem-based learning (PBL) on students' academic achievements in studying ‘Electrochemistry’ within a course on Analytical Chemistry. The research was of a pretest–posttest control group quasi-experimental design and it was conducted with second year students in the Chemistry Teaching Program at the Faculty of Education at Dokuz Eylul University. The topic was taught with PBL in the experimental group and with expository teaching strategies in the control group. The ‘Chemistry achievement test (CAT)’ was applied as the pre-test and post-test in both groups. Post-test scores from the CAT demonstrated that there was a significant difference between the academic achievements of the two groups in favour of the experimental group (U= 8.500,p< 0.05). After using PBL for a period, eleven open-ended questions related to the topic were asked to both groups. The results of these questions were categorized and the scores obtained from the categories were evaluated using content analysis. The results of the scores obtained from the open-ended questions showed that the students in the experimental group were able to make statements containing fewer misconceptions and also had a better understanding of this topic when compared to the students in the control group (U= 2.500,p< 0.05). The correlation between the scores in the CAT post-test and the scores obtained from the open-ended questions of the experimental and control groups was also examined. The Spearman correlation coefficients were found to be 0.907 and 0.595 for the experimental and the control group, respectively. This finding indicated that there was a positive and very high level of statistically significant correlation between the scores in the CAT post-test and the scores obtained from the open-ended questions of the students in the experimental group. Therefore this finding also supports the conclusion that the students in the experimental group were better able to understand the topic and its structure compared to the students in the control group. At the end of the application, the results of semi-structured interviews carried out showed that students in the experimental group had positive opinions regarding PBL.

scholarly journals THE EFFECT OF SUBTITLED ANIMATED CARTOON VIDEOS ON STUDENTS’ READING COMPREHENSION (A Quasi Experimental Study at The Sixth Grade Students of SDIT Al- Hasanah Kota Bengkulu)

2018 ◽  
Vol 1 (2) ◽  
pp. 20-29
Author(s):  
Gustian Pelani
Keyword(s):  
Experimental Study ◽  
Reading Comprehension ◽  
Sixth Grade ◽  
Animated Cartoon ◽  
Significant Difference ◽  
Sixth Grade Students ◽  
Quasi Experimental ◽  
Academic Year

Thisstudyaims toinvestigatewhetheror nottheuseofsubtitledanimated cartoonvideosaffectstudents’ reading comprehension and to findoutinwhat performanceof reading comprehension aspectstheexperimentaland controlclassdiffer. ThepopulationincludedallthesixthgradestudentsofSDITAlHasanahKotaBengkulu in  academic  year  2015/2016,  which  consisted  of  77  students.  The  sampleswere  52 studentsthatwere taken fromtwo classes.Theexperimentalclass receiveda treatmentby usinganimatedcartoonvideoswithbimodalsubtitles, while thecontrolclasswas taught byusinganimatedcartoonvideoswithoutsubtitles.A pre-testwasgiven tobothclasses beforetreatment.Thedata wereanalyzedbyusingSPSS16for t-testformula.Theresults show that, firstly, therewasa statistically significantdifferencebetween thegroups in readingcomprehension scores.Therefore, itwasconcluded thattheuse ofsubtitled animated cartoon videoscould improvestudents’ reading comprehension. Secondly, for reading  comprehension  aspects,  the  experimental  class  and  the  control  class  were different inthe literalperformanceaspect.However,intheinferenceperformance,it showed  no  significant  difference.  Based  on  the  results,  it  wasrecommended  to  use subtitled animatedcartoonvideosastheteaching aidinteachingreadingcomprehension

scholarly journals PENGARUH MINUMAN ISOTONIK TERHADAP DAYA TAHAN AEROBIK

2020 ◽  
Vol 5 (1) ◽  
pp. 40
Author(s):  
Rika Sepriani ◽  
Sepriadi Sepriadi
Keyword(s):  
Data Analysis ◽  
Research Design ◽  
Experimental Research ◽  
Male Students ◽  
Significant Difference ◽  
Before And After ◽  
Quasi Experimental

The purpose of this research is to prove the benefits of isotonic drinks promised by the manufacturers. This is a quasi-experimental research design involving 20 non-athlete male students. The data were analyzed using t-test.From the data analysis, it was found that there was a significant difference between aerobic endurance before and after drinking isotonic drinks, tobserve (5.398604) > ttable (1.729) at level significant α = 0.05. Based on the result of the research, it can be concluded that isotonic drinks has a significant effect towards students’ aerobic endurance.

scholarly journals Improving Nurses' Performance in Safe Handling of Antineoplastic Agents: a Quasi-experimental Study

2021 ◽  
Author(s):  
Arezoo Nouri ◽  
Mehri Seyyedjavadi ◽  
Effat Iranijam ◽  
Masoumeh Aghamohammadi
Keyword(s):  
Experimental Study ◽  
Standard Deviation ◽  
Anticancer Drugs ◽  
Oncology Nurses ◽  
T Test ◽  
Safe Handling ◽  
Significant Difference ◽  
Quasi Experimental ◽  
And Performance ◽  
Nurses Knowledge

Abstract Background: The safe, principled, and standard handling of anticancer drugs can reduce the effects of occupational exposure and promote safe behaviors in nurses. Thus, the present study aimed to determine the effects of standard guidelines education on the safe handling of anti-neoplasm drugs among oncology nurses in Ardabil, Iran.Methods: The quasi-experimental study with one-group pretest-posttest design was performed among 32 nurses employed in the oncology wards of two educational hospitals in Ardabil city, during 2020. All of the nurses in the wards who met the inclusion criteria participated in the study. The data were collected by using a demographic information form and nurses' knowledge assessment questionnaire regarding the standard guidelines for working with antineoplastic drugs, and a standard checklist for examining their performance in this regard. Then, they were analyzed through descriptive (mean and standard deviation) and inferential statistics (t-test and Pearson's correlation coefficient) in SPSS 22.Results: The mean and standard deviation of the knowledge and performance scores of the oncology nurses was respectively determined 59.56±6.41 and 18.96±2.54, which changed to 66±4.82 and 32.03±2.45 three months after training. The results of t-test represented a statistically significant difference between the level of knowledge and performance before and after the intervention (P=0.001).Conclusions: Based on the results, the standard guidelines education improved the nurses' knowledge and performance on the safe handling of anticancer drugs in the chemotherapy wards. Therefore, it is suggested to pay attention to the promotion of the oncology nurses' awareness in the planning and policy-making of healthcare centers.

scholarly journals Evaluating the Effect of Retinal Defocus (Blur) on Lateral Heterophoria

2021 ◽  
Vol 23 (1) ◽  
pp. 11-17
Author(s):  
George Nnamdi Atuanya ◽  
Osayimwen Osas Ero ◽  
Raphael Uchenna Enyinnaya Akpalaba
Keyword(s):  
Experimental Study ◽  
Confidence Level ◽  
Mean Difference ◽  
Inclusion Criteria ◽  
Standard Testing ◽  
Defocus Blur ◽  
Significant Difference ◽  
Quasi Experimental ◽  
The Mean ◽  
Ocular Health

Purpose: This study was conducted to ascertain the effect of retinal defocusing or retinal blur on lateral heterophoria at far and near.Methods: This was a quasi-experimental study involving 57 participants aged 5 to 35 years, who were selected based on the inclusion criteria of being myopes and emmetropes who had a normal general and ocular health. The Von Graefe technique was used for measuring phoria under standard testing conditions.Results: The mean baseline lateral phoria for emmetropes were 0.53 ± 1.14∆ exophoria and 2.47 ± 2.08∆ exophoria at far and near respectively, while after defocusing, it was 2.80 ± 0.88∆ exophoria and 4.34 ± 1.70∆ exophoria at far and near respectively. For myopes, the baseline lateral phoria was 1.52 ± 1.09∆ exophoria and 4.76 ± 1.13∆ exophoria at far and near respectively while after defocussing, it was 3.39 ± 0.92∆ exophoria at far and 7.60 ± 1.00∆ exophoria at near. The mean difference in lateral phoria was found to be significant at the 95% confidence level (P = 0.000). There was no statistically significant difference in lateral phoria change at far (P = 0.072), while the near phoria difference was significant (P = 0.002).Conclusion: Gas Retinal defocusing with +2.50D resulted in a shift towards exophoria at both far and near, with myopes experiencing more exophoric shift. This is because they are less sensitive to the presence of blur. This will enable practitioners to be cautious of the inhibition of accommodation due to higher exophoria at near when prescribing lenses. Keywords: Retinal Defocus, Myopia, Emmetropia, Near lateral phoria, Distance lateral phoria.

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