scholarly journals Does Giving the Learner Control Improve Learner Success?

2020 ◽  
Vol 12 (3) ◽  
pp. 135
Author(s):  
Abdu Ahmed Al Nashrey
Keyword(s):  
Test Scores ◽  
Learner Control ◽  
Educational Programs ◽  
Multimedia Technology ◽  
High School Chemistry ◽  
Chemistry Students ◽  
Multimedia Program ◽  
Significant Difference ◽  
Positive Effect ◽  
Better Than

This research aims to determine the most suitable style of educational control over the use of multimedia by high school chemistry students in Saudi Arabia. The research aims to quantify the effect of styles of educational control over multimedia (program or learner control) on 16-17 year old students' achievements in chemistry. The sample consists of two groups of 30 students. The first group studied with the learner control style while the second studied using the program control style. The results show that the improvement in chemistry test scores in the first group was better than in the second, with a statistically significant difference between groups at the α = 0.05 level. As a result of this research we recommend, firstly, using the learner control style when designing multimedia programs because of its demonstrated positive effect on achievement; and, secondly, expanding the use of educational programs for individual learning to other areas of education. In summary, this research highlights the beneficial combination of multimedia technology and pedagogy.

The effect of teaching the entire academic year of high school chemistry utilizing abstract reasoning

2018 ◽  
Vol 19 (2) ◽  
pp. 500-507
Author(s):  
Michael F. Z. Page ◽  
Patrick Escott ◽  
Maritza Silva ◽  
Gregory A. Barding
Keyword(s):  
High School ◽  
Small Sample Size ◽  
Teaching Style ◽  
Reaction Rates ◽  
Small Sample ◽  
Abstract Reasoning ◽  
High School Chemistry ◽  
Chemistry Students ◽  
School Year ◽  
Significant Difference

This case study demonstrates the ability of high school chemistry students, with varying levels of math preparation, to experience learning-gains on state and district assessments as it relates to chemical reactions, thermodynamics, and kinetics. These advances were predicated on the use of a teaching style rooted in abstract reasoning. The methodology was presented to students and modeled by the instructor over an entire school year to reinforce key proportional relationships featured in the balanced chemical equation and related topics such as acids and bases, reaction rates, equilibrium, and conservation of matter. Despite the small sample size, there was a general increase in student success, indicated by a statistically significant difference between students receiving instruction rooted in concrete reasoning and students receiving instruction rich in abstract reasoning.

scholarly journals Assessment of psychomotor skills using finger pulse guided biofeedback tool in young medical students

2018 ◽  
Vol 2 (4) ◽  
pp. 36-39 ◽  
Author(s):  
Chintala Kiran Kumar ◽  
A. V. Siva Kumar ◽  
Pullaganti Madhurima ◽  
K. N. Maruthy ◽  
Gurja John Preetham
Keyword(s):  
Test Scores ◽  
Dominant Hand ◽  
Psychomotor Skills ◽  
Time Duration ◽  
Skilled Performance ◽  
Significant Difference ◽  
And Gender ◽  
Finger Pulse ◽  
Right And Left Hands ◽  
Better Than

Psychomotor skills are the organized patterns of muscular activities guided by signals from the environment. These skills can be influenced by factors like age, gender, built of an individual and handedness. It’s a known fact that the dominant hand has more dexterity; nevertheless, proficiency of the non-dominant hand can be improved with repetition of tasks and procedures. The aim of the present study was to examine the influence of biofeedback mechanism on psychomotor skills performance and gender variation in their activity. Eighty participants aged between 20-30 years were recruited after taking the informed consent. All the subjects performed number countdown test and 100 pin dexterity test. Tests were done by fixing the subject’s heart beats instead of stipulated time which was picked up by finger Pulse plethysmography using optocoupler principle. The results were compared between the males and age-matched female participants. The pin dexterity scores with a right and left hands in males (57.2±8.1, 42.16±7.3) were significantly higher than females (48.41±8.4, 37.58±6.8) (p = 0.001 and p = 0.01). There was no significant difference in number countdown test scores. The results suggest that males handle a skilled performance better than females. This is perhaps males were less anxious as the task was designed in such way that it has to be completed by counting down the heart beats. In that way, the males got more time duration as the heart rate did not shoot up when the task was assigned.

A Study of the Effectiveness of a Multimedia Intelligent Tutoring System

1994 ◽  
Vol 22 (4) ◽  
pp. 337-344 ◽  
Author(s):  
Norman D. Livergood
Keyword(s):  
Delivery System ◽  
Test Scores ◽  
Intelligent Tutoring ◽  
Intelligent Tutoring System ◽  
Delivery Systems ◽  
Hard Copy ◽  
Tutoring System ◽  
Multimedia Program ◽  
Significant Difference ◽  
Computer Based

In this study, college undergraduate students were presented identical material on the domain of intelligent tutoring systems. The author designed his research to isolate the key variables, disallow for the effect of some of those variables, and determine in a precise way what effects are produced by a multimedia delivery system, repetition of instructional and testing material, and an intelligent tutoring system delivery system. The first phase of this study, comparing test scores of students who were presented material in two delivery systems: 1) hard-copy (printed material), and 2) a computer-based multimedia program, indicated no statistically significant difference in scores. A second part of that phase, comparing test scores and re-test scores of students studying the computer-based multimedia program, indicated no statistically significant difference in scores. The second phase of this study, comparing scores of the two initial delivery systems and scores on a multimedia modified intelligent tutoring system, resulted in a statistically significant difference in scores.

Transplantation of coral fragment, Acropora formosa (Scleractinia)

2014 ◽  
pp. 1
Author(s):  
Hanny Tioho ◽  
Maykel A.J Karauwan
Keyword(s):  
Fragment Size ◽  
Observation Time ◽  
Minimum Size ◽  
Average Growth Rate ◽  
Average Growth ◽  
Significant Difference ◽  
Acropora Formosa ◽  
Survival And Growth ◽  
One Way Anova ◽  
Better Than

The minimum size of coral transplants, Acropora formosa, was assessed to support their survival and growth. For this, 150 coral fragments of different sizes (5, 10, 15 cm) were transplanted close to the donor colony. Their survivorship and growth were observed for 12 months. At the end of the observation time, 90% of 15 cm-transplanted coral fragments survived, while the others (10cm and 5 cm) did 86% and 82% respectively. The average growth rate of 5 cm-coral fragments was 0.860 cm/month, while 10 and 15 cm-fragments were 0.984 cm/month and 1.108 cm/month respectively. One-way ANOVA showed that there was significant difference (p<0.05) among the three (5, 10, 15 cm) transplant initial sizes in which the longest fragment size tended to survive longer than the smaller one.  However, the smaller transplants grew better than the bigger one, 10.318 cm/year (206%) for 5 cm-transplant, 11.803 cm/year (118%) for 10 cm-transplant, and 13.299 cm/year (89%) for 15 cm-transplant, respectively. Ukuran minimal fragmen karang Acropora formosa yang ditransplantasi diduga untuk mendukung ketahanan hidup dan pertumbuhannya. Untuk itu, 150 fragmen karang ditransplantasi ke lokasi yang berdekatan dengan koloni induknya.  Ketahanan hidup dan pertumbuhan semua fragmen karang yang ditransplantasi diamati selama 12 bulan.  Pada akhir pengamatan, 90% dari fragmen karang berukuran 15 cm yang ditransplantasi dapat bertahan hidup, sedangkan yang lainnya (ukuran 10 cm dan 5 cm) masing-masing sebesar 86% dan 82%.  Rata-rata laju pertumbuhan fragmen karang dengan ukuran awal 5 cm adalah 0,860 cm/bulan, sedangkan ukuran fragmen 10 dan 15 cm masing-masing adalah 0,984 cm/bulan and 1,108 cm/bulan. ANOVA satu arah menunjukkan adanya perbedaan yang nyata (p<0.05) antara ketiga ukuran fragmen yang berbeda, di mana ukuran fragmen karang yang lebih panjang cenderung mempunyai ketahanan hidup yang lebih baik. Namun demikian, ukuran transplant yang lebih kecil memiliki pertumbuhan lebih baik dibandingkan dengan ukuran yang lebih besar, yakni10,318 cm/tahun (206%) untuk transplant berukuran 5 cm, 11,803 cm/tahun (118%) untuk 10 cm, dan 13,299 cm/tahun (89%) untuk ukuran 15 cm.

Effect of Concept Mapping as an Innovative Teaching Method on Senior School Students’ Interest in Chemistry

2019 ◽  
pp. 66-74
Author(s):  
Offor E. N.
Keyword(s):  
Concept Mapping ◽  
Teaching Method ◽  
Mapping Method ◽  
Control Group ◽  
School Students ◽  
Innovative Teaching ◽  
Chemistry Students ◽  
Lecture Method ◽  
Significant Difference ◽  
Innovative Teaching Method

The study was designed to explore the effect of concept mapping as an innovative teaching method on senior school students‟ interest in chemistry. The pre -test post- test quasi experimental design was adopted for the study. The population for the study comprised 1425 senior secondary two (SS2) chemistry students in Agbani Education Zone. A total of 189 SS2 chemistry students were drawn from three secondary schools selected in the zone through purposive sampling method. Two research questions and two hypotheses guided the study. In each of the schools used for the study, all the chemistry students in their intact classes were used. The experimental group was taught using concept mapping while the control group was taught using the lecture method of teaching. The treatment lasted for six weeks. The instrument for data collection was Chemistry Interest Scale (CIS). The CIS was validated by three experts. Before the treatment commenced, a pre- interest scale was administered and a reliability coefficient of 0.72 was established using Cronbach Alpha. The data collected was analyzed using analysis of co variance (ANCOVA). The result of the data analysis showed that there is a significant difference between the mean interest scores of students taught chemistry with concept mapping and those taught with lecture method. The study concludes by recommending that concept mapping method of teaching should be adopted in teaching of chemistry as this has helped to stimulate interest in chemistry which will help to enhance their achievement.

Isolation of an Anti-fatigue Preparation from Cellulase-treated Maca by Hydroalcoholic Extraction

2017 ◽  
Vol 17 (1) ◽  
pp. 93-98
Author(s):  
Zheng Yue ◽  
Zhang Wen-Cheng ◽  
Wu Ze-Yu ◽  
Fu Chuan-Xiang ◽  
Gao Han ◽  
...  
Keyword(s):  
Positive Control ◽  
Glycogen Storage ◽  
Hepatic Glycogen ◽  
Time To Exhaustion ◽  
High Dose ◽  
Hydroalcoholic Extract ◽  
Swimming Time ◽  
Significant Difference ◽  
Pre Treatment ◽  
Better Than

The purpose of this study was to evaluate the anti-fatigue activity of maca hydroalcoholic extract (ME), which mainly contains macamides and polysaccharides. ME was prepared by circumfluence extraction with enzymatic pre-treatment. Anti-fatigue activity of ME was investigated in weight-loaded forced swimming mice, with pure macamides and commercially available maca tablet as positive control. Compared with normal group, pure macamides treatment group could prolong the swimming time to exhaustion, but there was no statistically significant difference (P > 0.05); while ME (middle-dose and high-dose groups) could effectively prolong the swimming durations (P < 0.05). Supplementation with pure macamides significantly decreased blood lactic acid (BLA), whereas ME significantly increased hepatic glycogen (HG), decreased BLA, and blood urea nitrogen (BUN) compared with those in normal control (P < 0.05). The results suggested that the anti-fatigue effect of ME was better than that of pure macamides, which can be explained by the increase of glycogen storage and the reduction of metabolites accumulation.

P-Removal in Completely Mixed Systems

1985 ◽  
Vol 17 (11-12) ◽  
pp. 325-326 ◽  
Author(s):  
H J. G. W. Donker ◽  
P. Opic ◽  
H. P. de Vries
Keyword(s):  
Mixed System ◽  
Domestic Waste ◽  
Recirculation Flow ◽  
Start Up ◽  
Significant Difference ◽  
Aerobic Reactor ◽  
The Difference ◽  
Positive Effect ◽  
Mixed Systems ◽  
P Removal

Ca. 60 % of the Dutch activated sludge plants consist of completely mixed systems, experiments have been carried out in completely mixed pilot plants to study the biological P-removal. The research was carried out in two pilot plants. The pilot plants consisted of: anaerobic reactor, anoxic reactor, aerobic reactor and a clarifier. All the reactors were completely mixed. Both plants were fed with settled domestic waste water at a sludge loading of 400 and 250 g COD/kg sludge.day respectively. The results are given below:sludge loading (g COD/kg sludge.day)400400250ratio Anaerobic : Anoxic : Aerobic1: 1:2,71:1:4,11:1:2,7P-removal (%)802875N-removal (%)505065COD-removal (%)858585 It has been shown that there is no significant difference between the results at the two different sludge loadings. Remarkable is the difference between the ratio 1:1:2,7 in combination with the internal recirculation flow anoxic-anaerobic of 160 % and the ratio 1:1:4,1 with a recirculation flow of 30 %. During the start-up at a sludge loading of 250 g COD/kg sludge.day and an internal recirculation flow of 30 %, bulking sludge developed almost immediately. The Premoval was completely disturbed. Increasing the internal recirculation flow to 160% had a positive effect on settling properties and P-removal. This investigation has pointed out that a completely mixed system is suitable for biological P-removal, without negatively affecting the nitrification. Important factors in the process are the ratio anaerobic:anoxic:aerobic and the recirculation flows.

EMOTIONAL INTELLIGENCE AND ACADEMIC ACHIEVEMENT OF ADOLESCENTS WITH REFERENCE TO GENDER

2017 ◽  
Vol 4 (24) ◽  
Author(s):  
Nisha Chandel ◽  
Seema Chopra
Keyword(s):  
Academic Achievement ◽  
Emotional Intelligence ◽  
Female Adolescents ◽  
Intelligence Scale ◽  
Male And Female ◽  
Male Adolescents ◽  
Significant Difference ◽  
Understanding Emotions ◽  
School Records ◽  
Better Than

The present study was undertaken to find out emotional intelligence and academic achievement of male and female adolescents. The sample consists of 82 students( 41 male and 41 female adolescents) from different schools in Hamirpur district of Himachal Pradesh. Emotional intelligence was assessed with the help of Emotional Intelligence Scale developed by Singh and Narain (2014) and academic achievement score were taken from the school records. The results revealed that there exists a significant difference in emotional intelligence of male and female adolescents. It was found that there existed significant difference in academic achievement of female adolescents and male adolescents. The mean emotional intelligence of female adolescents was better than of male adolescents. On the dimensions of emotional intelligence, it was found that there was no significant difference between male and female adolescents on understanding emotions, empathy and handling relations dimensions of emotional intelligence; while it was reported that there was significant difference between male and female adolescents on understanding motivation dimension of emotional intelligence On the other hand, it was found that there existed significant difference in academic achievement of female adolescents and male adolescents.

scholarly journals Integrated Bimodal Fitting for Unilateral CI Users with Residual Contralateral Hearing

2021 ◽  
Vol 11 (2) ◽  
pp. 200-206
Author(s):  
Gennaro Auletta ◽  
Annamaria Franzè ◽  
Carla Laria ◽  
Carmine Piccolo ◽  
Carmine Papa ◽  
...  
Keyword(s):  
Cochlear Implants ◽  
Hearing Aids ◽  
Speech Intelligibility ◽  
Hearing Aid ◽  
Performance Difference ◽  
Test Conditions ◽  
Significant Difference ◽  
Noisy Conditions ◽  
New Formula ◽  
Better Than

Background: The aim of this study was to compare, in users of bimodal cochlear implants, the performance obtained using their own hearing aids (adjusted with the standard NAL-NL1 fitting formula) with the performance using the Phonak Naìda Link Ultra Power hearing aid adjusted with both NAL-NL1 and a new bimodal system (Adaptive Phonak Digital Bimodal (APDB)) developed by Advanced Bionics and Phonak Corporations. Methods: Eleven bimodal users (Naìda CI Q70 + contralateral hearing aid) were enrolled in our study. The users’ own hearing aids were replaced with the Phonak Naìda Link Ultra Power and fitted following the new formula. Speech intelligibility was assessed in quiet and noisy conditions, and comparisons were made with the results obtained with the users’ previous hearing aids and with the Naída Link hearing aids fitted with the NAL-NL1 generic prescription formula. Results: Using Phonak Naìda Link Ultra Power hearing aids with the Adaptive Phonak Digital Bimodal fitting formula, performance was significantly better than that with the users’ own rehabilitation systems, especially in challenging hearing situations for all analyzed subjects. Conclusions: Speech intelligibility tests in quiet settings did not reveal a significant difference in performance between the new fitting formula and NAL-NL1 fittings (using the Naída Link hearing aids), whereas the performance difference between the two fittings was very significant in noisy test conditions.

Educational intervention to improve palliative care knowledge among informal caregivers of cognitively impaired older adults

2020 ◽  
pp. 1-9
Author(s):  
Hyunjin Noh ◽  
Lewis H. Lee ◽  
Chorong Won
Keyword(s):  
Older Adults ◽  
Palliative Care ◽  
Cognitive Impairment ◽  
Educational Intervention ◽  
Test Scores ◽  
Informal Caregivers ◽  
Cognitively Impaired ◽  
Significant Difference ◽  
Post Test ◽  
Seriously Ill

Abstract Objective Lack of palliative care knowledge among caregivers may pose an access barrier for cognitively impaired older adults, who may benefit from the specialized care. Therefore, this study aims to examine the effectiveness of an educational intervention in improving palliative care knowledge among informal caregivers of cognitively impaired older adults. Method Using a one-group, pre- and post-test intervention design, this study implemented an individual, face-to-face educational intervention with an informational brochure for 43 informal caregivers of chronically or seriously ill older adults (50+) with cognitive impairment, recruited from communities in West Alabama. Their level of knowledge about palliative care was assessed by the Palliative Care Knowledge Scale (PaCKS). The pre- and post-test scores were compared by the Wilcoxon signed-ranks test, and the racial subgroup (Whites vs. Blacks) comparison was made by the Mann–Whitney U test. Results There was a statistically significant difference between the pre- and post-test scores (z = 5.38, p < 0.001), indicating a statistically significant effect of the educational intervention in improving palliative care knowledge among participants. There was a significant difference (U = 143, p < 0.05) between Whites and Blacks in the pre-test, which, however, disappeared in the post-test (U = 173.50, p > 0.05), suggesting that the amount of increased PaCKS scores were significantly greater for Blacks (Mdn = 9.50) than for Whites (Mdn = 4.00, U = 130.50, p < 0.05). Significance of results This study demonstrated that a one-time educational intervention can improve the level of palliative care knowledge among informal caregivers of chronically or seriously ill older adults with cognitive impairment, particularly among Black caregivers. Therefore, further educational efforts can be made to promote palliative care knowledge and reduce racial disparities in palliative care knowledge and its use.

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