Imagery Intervention in Open and Closed Tennis Motor Skill Performance

2007 ◽  
Vol 105 (2) ◽  
pp. 458-468 ◽  
Author(s):  
Ricardo Weigert Coelho ◽  
Wagner De Campos ◽  
Sergio Gregorio Da Silva ◽  
Fabio Heitor Alves Okazaki ◽  
Birgit Keller

To assess use of imagery intervention in performance of two tennis motor skills the quasi-experimental design included a pre- and posttest and a control group. The tennis service shot and service receiving skill were selected as representative of open and closed skills, respectively. 48 subjects, male tennis players, whose ages ranged from 16 to 18 yr. ( M = 17.2), were divided into two groups: (1) Technical practice only which was used as control group and (2) Imagery group who received both imagery and technical practice. Analysis of covariance showed a significant main effect for the imagery intervention on the closed skill ( p = .002). Findings suggest that imaging a positive outcome may be more powerful in improving performance of closed skill movements than of open skill movements.

2019 ◽  
Vol 1 (1) ◽  
pp. 108-114
Author(s):  
I Made Wirta

The main objective of the present study is to investigate the effect of implementing innovative learning approaches upon English students’ achievement. The study was quasi experimental study using the post-test only control group design involving 35 students altogether selected using census sampling technique. The instrument which is used to gather data in the study was test. There were two tests used to gather intended data. They were linguistic test and student achievement test. The obtained data were analyzed statistically using descriptive and inferential analysis. The analysis of covariance was conducted to test the hypotheses.


2021 ◽  
pp. 104973152110014
Author(s):  
Siu-ming To ◽  
Xiaoyu Liu

Purpose: Using a nonrandomized control group pretest–posttest assessment, this study aimed to examine the outcomes of community-based youth empowerment initiatives that were informed by design thinking. Method: A total of 553 youth living in Hong Kong were recruited to participate in this study. Among them, 213 youth self-selected to join the experimental group, and 340 youth joined the two control groups. Multivariate analysis of covariance and post hoc group comparisons were used to examine the differences among the three groups at the posttest assessment. Results: The results indicate a positive improvement in creative self-efficacy among participants of the experimental group compared to the two control groups. Significant differences were also found between the experimental group and the second control group in terms of youth–adult partnerships and youth empowerment in the community. Conclusion: Youth empowerment programs informed by design thinking may reinforce self-efficacy beliefs by encouraging youth to bring about innovations in their community.


Author(s):  
Rafidah Abd Karim ◽  
Airil Haimi Mohd Adnan ◽  
Abdul Ghani Abu ◽  
Noorzaina Idris ◽  
Izwah Ismail

<p class="0abstract">This study examined the use of a mobile-based technological tool known as Mobile-assisted Mind Mapping Technique (MAMMAT) to support ESL university students’ argumentative writing skills performance. The participants of this study were 45 ESL university students from two lecture groups at a public university campus in Peninsular Malaysia. The study employed a quasi-experimental research design. The experimental group was taught utilizing the MAMMAT whilst the control group was taught utilizing the conventional method. The pre-test and post-test scores were analysed through analysis of covariance (ANCOVA). The analysis of covariance (ANCOVA) results showed that there were statistically significant differences between the groups when test items were measured. As a conclusion, the MAMMAT has supported ESL university students’ argumentative writing skills performance. The study implicates that the use of MAMMAT can support students’ argumentative writing in ESL classroom.</p>


2021 ◽  
pp. 186-191

Background and Objective: This study aimed to determine the effect of synchronization of brain waves in alpha, beta, and theta bands by the Binaural beats on visuospatial working memory. Materials and Methods: The present quasi-experimental study was conducted based on a pretest-posttest control group design. In this regard, 60 students were selected by the available sampling method and randomly divided into three experimental groups and one control group (n=15 each). All subjects were assessed in the pre-test and post-test stages by the Corsi blocks tapping test. Participants in the experimental groups received 15, 9, 5, and 6 Hz binaural beats for 12 min. The collected data were analyzed using a one-way analysis of covariance. Results: The findings showed that 15 Hz binaural beats (beta bands) significantly improved the subject's visuospatial working memory (P<0.05). Conclusions: Given that working memory is the basis of numerous cognitive functions, using 15 Hz binaural beats could improve the visuospatial working memory in these people


Author(s):  
Batol Ramazani ◽  
Foroogh Bakhtiari

Background: Moving away from family can cause psychological and emotional trauma for the elderly. Accordingly, the present study aimed to evaluate the effectiveness of spiritual therapy on loneliness feeling among the elderly in a nursing home in Isfahan. Methods: The method was quasi-experimental with a pretest-posttest design and a control group. The population of this study included all of the elderly in Sadeghieh nursing home in Isfahan in 2018. The sample of this study included 30 elderly people being selected by purposive sampling and then randomly included in the experimental and control groups (15 elderly people in each group). The experimental group received the therapeutic interventions related to spiritual therapy at eight sessions of 90 minutes every week for two months. Then, the subjects in both groups were re-tested. The used instruments included Russell’s loneliness questionnaire (1996). After collecting the questionnaires and extracting the raw data, the data analysis was conducted using descriptive statistics and analysis of covariance by SPSS23 statistical software at 0.05 error level. Results: spiritual therapy had a significant effect on loneliness among the elderly in the nursing home (p < 0.001). In this regard, this therapy could reduce loneliness among the elderly in the nursing home. The effect of spiritual therapy on loneliness among the elderly in the nursing home was 53%. Conclusion: Based on the research findings, spiritual therapy can reduce loneliness among the elderly by the techniques such as taking responsibility, assigning cases to God, strengthening the intention, and deleting negative thoughts.


2020 ◽  
Vol 9 ◽  
pp. 120-139
Author(s):  
Thomas Adebisi ◽  
Oladimeji Oladimeji,

Effective teaching of Biology practical entails the use of specimens. However, in Nigeria, some natural specimens are difficult to obtain when needed, hindering the learning and application of science process skills. Consequently, teachers resort to pictorial representation of specimen and to online prints for Biology practical instructions. Another possible alternative less discussed is the use of synthetic or artificial specimens. The goal of this study, therefore, was to examine the effect of using synthetic and natural specimen on practical skills- process skills acquisition and application in Biology practical in secondary schools. It sought to determine the efficacy of using synthetic specimens to complement or substitute for natural specimens in teaching Biology practical. The study employed the pre-test, post-test, control group, quasi- experimental design. A total of 212 senior secondary school (SS II) Biology students in six selected government-owned high schools in Moba and Ijero Local Government Area of Ekiti state, Nigeria, were randomly selected for the study. The schools were paired and assigned to two experimental groups (using synthetic and natural specimens) and a control group (using conventional drawings). Eight instruments were employed for the study and used at treatment stage. Data collected were analyzed using Analysis of Variance (ANOVA), Analysis of Covariance (ANCOVA) and Multiple Classification Analysis (MCA). The results showed that there was a significant effect of synthetic specimens and natural specimens on the proficiency of the students in basic science process skills acquisition (F = 60.470, P<0.05). However, the mean gain of 3.884 which existed between the two groups showed that natural specimens were slightly more effective than synthetic specimens. The results also showed a significant effect for the use of synthetic specimens on process skills acquisition and applications of Biology concept among the students (F = 74.773, P<0.05). The study concluded that synthetic specimens are equally effective as natural specimens in improving the acquisition and application of basic science process skills of students in Biology.


2018 ◽  
Vol 10 (1.SP) ◽  
pp. 34
Author(s):  
Masoumeh GHARIBBOLUK ◽  
Soghra HOSSEINZADEH

Objective: The aim of the research was to investigate the effect of Mindfulness Training on Quality of Perceptual Marital Relationship and Psychological Well-being of Women with Addicted Wife.Methods: The research method was quasi-experimental with pretest- posttest and 3 months follow up, with a control group. Among the population of Women with Addicted Wife, twenty Women with Addicted Wife (10 persons in experimental group, 10 persons in control group) were selected by purposeful sampling method and were assigned in experimental and control groups. The experimental group received 8 session (2 hours for each) of positive thinking training. For data collection, Fletcher Perceived Quality of Marital Relationship Scale and Ryff Psychological Well-Being Questionnaire were used.Results: Multivariate analysis of covariance (MANCOVA) was used for analyzing the data. The results showed the Mindfulness Training was effective on the quality of marital relationship and psychological well-being among Women with Addicted Wife. Also, the training was effective in a 3 months follow up.Conclusion: Therefore, Mindfulness Training skills can be used in prevention actions.


Author(s):  
Oluwabunmi V. Kehinde-Dada ◽  
Olusola Obisanya ◽  
Gbenga Adewale

This study determined the effects of data-driven instructional strategy (DDIS) on pre-service teachers' lesson preparation in mathematics. The moderating effect of gender was also examined. A pretest-posttest control group quasi-experimental design was adopted. Twenty-seven College of Education pre-service teachers participated in the study. The study was guided by three research questions. Data collected were analyzed using analysis of variance (ANOVA). Instruments used were rating scale tagged practical teaching assessment scale (PTAS) (Scotts' pie = 0.87) and data-driven instructional package (DDIP). There was a significant main effect of treatment on pre-service teachers' lesson preparation (F(1,23)= 26.83, partial η2 = 0.54). Lesson preparations of pre-service teachers exposed to DDIS (x ̅ = 7.12) were better than those of control (x ̅ = 4.87). There was a significant interaction effect of treatment and teachers' gender on pre-service teachers' lesson preparation (F(1,23)= 4.37). Data-driven instructional strategy enhanced pre-service teachers' lesson preparation in mathematics.


2017 ◽  
Vol 9 (3) ◽  
Author(s):  
Norlia Mat Esa ◽  
Ramlah Mailok ◽  
Maizatul Hayati Mohamad Yatim

This study aims to determine the effectiveness of persuasive graphic game as compared to game without persuasive graphic on the attitude change on selection of healthy foods among year two students.  This study is a quasi-experimental with pre and post test for the non-equivalent group. The study sample comprised of 62 students consisting of 32 students in treatment group and 30 students in the control group. Analysing the data set using Analysis of Covariance (ANCOVA), the results indicate that the adjusted mean (79.90) of the persuasive graphic game is statistically significantly higher (F(1,57) = 16.63, p < .001) than the adjusted mean (73.70) of the non-persuasive graphic game. The obtained effect size (ES = +0.83), which is equivalent to approximately four fifth of a standard deviation, denotes the educational significance, favouring the persuasive graphic game group.   


2020 ◽  
Vol 10 (4) ◽  
pp. 1
Author(s):  
Bertha Ese Omoruan ◽  
Patrick Uzo Osadebe

  The study investigated pupils’ achievement in rational numbers, using constructivist models and traditional approach of instruction as connecting points between pupils’ prior knowledge of whole numbers concept and the new concept. Pre-test post-test non-equivalent control group quasi-experimental research design was adopted. A research question guided the study and was answered using descriptive statistics; and a formulated corresponding null hypothesis was tested at 0.05 level of significance, using analysis of covariance (ANCOVA). A sample of 103 pupils was used for the study. A test instrument titled Rational Numbers Achievement Test (RNAT) was developed, validated and used to generate data. The instrument had 0.74 reliability index of internal consistency through the use of Kuder Richardson formula 21. The results showed that different types of representation are central to conceptual understanding, and are able to resolve pupils’ difficulties and misconceptions about rational numbers. Based on these findings, it was recommended that constructivist models of instruction should be part of the main instructional approaches for the teaching-learning of mathematics at the Basic Levels of the Nigerian school system.


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