A COMPARATIVE STUDY OF TWO STANDARD-SETTING TECHNIQUES

2007 ◽  
Vol 35 (4) ◽  
pp. 479-486 ◽  
Author(s):  
Abdalla A. Alsmadi
Keyword(s):  
Comparative Study ◽  
Strong Evidence ◽  
Standard Setting ◽  
Introductory Psychology ◽  
Angoff Method ◽  
Significant Difference ◽  
Passing Score

This study compares the Angoff method (1971) for setting standards with the Ebel method (1972), using a test in introductory psychology. Although results showed a significant difference in the minimum passing score obtained through these methods, results also showed strong evidence of agreement between both methods about the number of students classified as pass/fail. The Angoff method tended to be more stringent and produce a higher minimum passing score than the Ebel method.

scholarly journals “Is There a “Best” Method for Standard Setting in OSCE Exams? Comparison between Four Methods (A Cross-Sectional Descriptive Study)

2020 ◽  
Vol 19 (1) ◽  
Author(s):  
Doaa Kamal ◽  
Moataz Sallam ◽  
Enas Gouda ◽  
Sally Fouad
Keyword(s):  
Undergraduate Students ◽  
Standard Setting ◽  
Descriptive Study ◽  
Cross Sectional ◽  
Pass Mark ◽  
Significant Difference ◽  
The Difference ◽  
The University ◽  
Passing Score ◽  
Selection Of

Background: One of the essential considerations while designing an OSCE exam is “standard-setting”, which refers to the score with which a student could be considered to pass or fail an exam. The selection of proper standard-setting method is based on different criteria, including the applicability of the method, the university bylaws, and the purpose of the test. Objectives: To examine the difference between four different standard-setting methods: the modified Cohen’s, borderline regression, Hofstee methods, and the fixed 60% arbitrary method in determining the passing score in ophthalmology OSCE exam. Methods: Two periodic ophthalmology OSCE were selected to examine the differences in failure rates and pass scores. The four standard setting methods were applied with a sample size that included 38 (year 5 undergraduate) students at the Faculty of Medicine, Suez Canal University. Results: Modified Cohen’s method resulted in the lowest passing score (54% and 58%), while the Hofstee method led to the highest passing score (69.2% and 75%). Comparing the percentage of students who are supposed to pass the exam, we can observe that there is no statistically significant difference among these standard-setting methods were used except for the Hofstee method. Conclusions: There is no single best method for setting the passing mark of an exam. We could obtain more practical outcomes if we considered more than one method and the average pass mark.

Comparative Study between Endoscopic Aided Septoplasty with Two Handed Technique using Endoholder and Conventional Septoplasty

2020 ◽  
Vol 16 (3) ◽  
Author(s):  
Apar Pokharel ◽  
Naganawalachullu Jaya Prakash Mayya ◽  
Nabin Gautam
Keyword(s):  
Comparative Study ◽  
Nasal Septum ◽  
Deviated Nasal Septum ◽  
Endoscopic Septoplasty ◽  
Septal Surgery ◽  
Significant Difference ◽  
Common Causes ◽  
Prospective Comparative Study ◽  
Evolutionary Step ◽  
One Year

Introduction: Deviated nasal septum is one of the most common causes for the nasal obstruction. The objective of this study is to compare the surgical outcomes in patients undergoing conventional septoplasty and endoscopic septoplasty in the management of deviated nasal septum. Methods:  Prospective comparative study was conducted on 60 patients who presented to the Department of ENT, College of Medical sciences, during a period of one year. The severity of the symptoms was subjectively assessed using NOSE score and objectively assessed using modified Gertner plate. Results: There was significant improvement in functional outcome like NOSE Score and area over the Gertner plate among patients who underwent endoscopic septoplasty. Significant difference in incidence of post-operative nasal synechae and haemorrhage was seen in conventional group compared to endoscopic group. Conclusions: Endoscopic surgery is an evolutionary step towards solving the problems related to deviated nasal septum. It is safe, effective and conservative, alternative to conventional septal surgery.

scholarly journals Scanning Electron Microscopy Analysis of the Anterior Capsulotomy Edge: A Comparative Study between Femtosecond Laser-Assisted Capsulotomy and Manual Capsulorhexis

2018 ◽  
Vol 2018 ◽  
pp. 1-6 ◽  
Author(s):  
Daniele Tognetto ◽  
Chiara De Giacinto ◽  
Alberto Armando Perrotta ◽  
Tommaso Candian ◽  
Alessandro Bova ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Femtosecond Laser ◽  
Comparative Study ◽  
Surface Irregularity ◽  
Significant Difference ◽  
Group 2 ◽  
Cut Surface ◽  
Scanning Electron ◽  
Group 1

Purpose. To compare the capsule edges ultrastructure obtained by two femtosecond laser-assisted cataract surgery (FLACS) platforms and manual continuous curvilinear capsulorhexis (CCC) using scanning electron microscopy (SEM). Setting. Eye Clinic, University of Trieste, Italy. Design. Experimental comparative study. Methods. 150 anterior capsules were collected and divided into three groups as follows: Group 1 (50 capsules) obtained with manual CCC, Groups 2 and 3 (each with 50 capsules) obtained with the Catalys Laser and the LenSx Laser, respectively. All samples were imaged by means of SEM and regularity of the cut surface, and thickness of the capsule edge were evaluated and compared. Results. All femtosecond laser (FSL) capsules were perfectly circular, whereas some alteration of the circular shape was observed in the manual ones. Group 1 showed a smooth and regular capsule edge without any surface irregularity, conversely Groups 2 and 3 showed postage-stamp perforations on the capsule edge. The cut surface irregularity value in Group 2 was 1.4 ± 0.63, while it was 0.7 ± 0.49 in Group 3 (p<0.05). Group 1 had a significantly lower thickness of the capsule edge than the FSL groups (p<0.05). No statistically significant difference in the capsule edge thickness between the FSL groups was found (p=0.244). Conclusions. Despite the presence of slight cut surface irregularities, both FSL capsulotomies showed a better geometry and circularity than the manual ones. Capsulotomy specimens obtained using both FSL capsulotomies showed laser-induced alterations of the capsule edge when compared with smooth and regular edges obtained using manual CCC.

scholarly journals A COMPARATIVE STUDY OF STANDARD-SETTING METHODS

1983 ◽  
Vol 1983 (2) ◽  
pp. i-48 ◽  
Author(s):  
Samuel A. Livingston ◽  
Michael J. Zieky
Keyword(s):  
Comparative Study ◽  
Standard Setting

scholarly journals Cortical Bone Trajectory Screws in Posterior Lumbar Interbody Fusion: Minimally Invasive Surgery for Maximal Muscle Sparing—A Prospective Comparative Study with the Traditional Open Technique

2018 ◽  
Vol 2018 ◽  
pp. 1-7 ◽  
Author(s):  
Nicola Marengo ◽  
Marco Ajello ◽  
Michele Federico Pecoraro ◽  
Giulia Pilloni ◽  
Giovanni Vercelli ◽  
...  
Keyword(s):  
Comparative Study ◽  
Interbody Fusion ◽  
Pedicle Screws ◽  
Posterior Lumbar Interbody Fusion ◽  
Fusion Rate ◽  
Lumbar Interbody Fusion ◽  
Significant Difference ◽  
Prospective Comparative Study ◽  
One Year ◽  
Muscular Damage

Introduction. A prospective comparative study between classical posterior interbody fusion with peduncular screws and the new technique with divergent cortical screws was conducted. Material and Methods. Only patients with monosegmental degenerative disease were recruited into this study. We analyzed a cohort of 40 patients treated from January 2015 to March 2016 divided into 2 groups (20 patients went to traditional open surgery and 20 patients under mini-invasive strategy). Primary endpoints of this study are fusion rate and muscular damage; secondary endpoints analyzed were three different clinical scores (ODI, VAS, and EQ) and the morbidity rate of both techniques. Results. There was no significant difference in fusion rate between the two techniques. In addition, a significant difference in muscular damage was found according to the MRI evaluation. Clinical outcomes, based on pain intensity, Oswestry Disability Index status, and Euroquality-5D score, were found to be also statistically different, even one year after surgery. This study also demonstrated a correlation between patients’ muscular damage and their clinical outcome. Conclusions. Cortical bone trajectory screws would provide similar outcomes compared to pedicle screws in posterior lumbar interbody fusion at one year after surgery, and this technique represents a reasonable alternative to pedicle screws.

A Comparative Study of Endoscopic Coblation Adenoidectomy and Regular Curettage Adenoidectomy in a Tertiary Care Hospital in Kerala

2021 ◽  
Vol 8 (41) ◽  
pp. 3559-3566
Author(s):  
Abdul Salam R. T. ◽  
Shahul Hameed A. ◽  
Meera Rajan
Keyword(s):  
Blood Loss ◽  
Comparative Study ◽  
Tertiary Care ◽  
Operation Time ◽  
Care Hospital ◽  
Adenoid Tissue ◽  
Significant Difference ◽  
Tube Function ◽  
Prospective Comparative Study ◽  
The Mean

BACKGROUND An ideal surgery to remove hypertrophied adenoid mass should be safe, with less bleeding and operation time along with post-operative improvement in the eustachian tubal ventilation and normal respiration. It should also have low morbidity and mortality. Among the various methods described for its removal, the two commonly used methods are conventional cold curettage method and coblation technique. The purpose of this study was to collate the safety and efficacy of endoscopic coblation adenoidectomy with the conventional curettage adenoidectomy. METHODS A prospective comparative study with fifty patients was studied who underwent adenoidectomy. Twenty five patients underwent endoscopy assisted coblation adenoidectomy and twenty five patients underwent regular adenoidectomy by curettage. RESULTS Patients who underwent coblation adenoidectomy showed better results during follow up in terms of completeness of removal. 80 % of children undergoing regular adenoidectomy by curettage method showed remnant adenoid tissue in the nasopharynx at the end of the procedure. But it was 6 % among the children undergoing endoscopic assisted coblation adenoidectomy. The mean duration of operation was higher for endoscopic assisted coblation adenoidectomy which was significant statistically. The mean blood loss was 30.36 ml in regular curettage adenoidectomy; 10.6 ml with endoscopic coblation adenoidectomy. The grading of pain was significantly lower in endoscopic assisted coblation adenoidectomy. There was no significant difference between two groups in terms of eustachian tube function after surgery. CONCLUSIONS Coblation adenoidectomy has significant advantages over conventional adenoidectomy in terms of completeness of removal, reduced blood loss, and lower post-operative pain grade. KEYWORDS Coblation, Adenoidectomy, Curettage, Haemorrhage and Complications

A Comparative Study between Ketamine and Lidocaine ro Decrease Propofol Injection Pain During Induction of Anesthesia

2021 ◽  
Vol 6 (1) ◽  
pp. 1304-1309
Author(s):  
Bikash Khadka ◽  
Nil Raj Sharma
Keyword(s):  
Comparative Study ◽  
Venous Occlusion ◽  
Verbal Response ◽  
Injection Pain ◽  
P Value ◽  
Chi Square ◽  
Cross Sectional ◽  
Lidocaine Group ◽  
Mild Pain ◽  
Significant Difference

Introduction: Pain during the injection of anesthetic agents may be distressing and can reduce the acceptability of an otherwise useful agent such as propofol during daycare surgeries. Lidocaine and ketamine both are used as pre-treatment to decrease propofol induced pain. This study aims to compare the effectiveness of ketamine injection to decrease propofol-induced pain in comparison to lidocaine injection. Methodology: This is a prospective cross-sectional comparative study. Eighty-nine cases were divided into two groups where group K received ketamine 2 ml (0.2 mg/kg) whereas group L received lidocaine 2% 2ml (0.5 mg/kg) after venous occlusion with rubber tourniquet. One-fourth dose of propofol was injected 1 min after release of tourniquet and pain accessed at 0, 1, and 2 minutes of propofol injection with a verbal response and behavioral signs. Chi-square test and paired T-test were used and a p-value less than 0.05 was considered significant. Result: Regarding hemodynamic, oxygenation, and adverse effects there was no significant difference. Immediately after propofol injection, only 1 patient of the ketamine group had mild pain (2.22%) while 12 patients from the lignocaine group had mild pain (27.27%) with a p-value of 0.009. Also after 2 minutes of propofol injection, only 12 cases had mild pain i.e. 13.48% (1 from ketamine group i.e. 2.22% and 11 from lidocaine group i.e. 25%) with p-value of 0.002. Conclusion: Our study helps prove low-dose ketamine is more effective in reducing the incidence and severity of pain on injection of propofol in comparison to Lidocaine with better hemodynamic stability. 

A comparative study on the nursery culture of hatchery-reared sub-adult cupped oyster, Crassostrea iredalei (Faustino, 1932), in an earthen pond and a mangrove canal

2018 ◽  
Vol 26 (4) ◽  
pp. 217-222
Author(s):  
Premwadee Chueachat ◽  
Woraporn Tarangkoon ◽  
Suwat Tanyaros
Keyword(s):  
Growth Rate ◽  
Comparative Study ◽  
Condition Index ◽  
Daily Growth ◽  
Nursery Culture ◽  
Absolute Growth Rate ◽  
Significant Difference ◽  
Adult Oyster ◽  
Absolute Growth ◽  
The Mean

Abstract A comparative study on the nursery culture of the spat of the tropical oyster, Crassostrea iredalei, in an earthen pond and a mangrove canal was conducted over two months. The results revealed no differences in the absolute growth rate determined by shell width between the two culture sites (P < 0.05). Sub-adult oysters cultured in the mangrove canal showed a higher absolute growth rate in shell length and a higher daily growth rate than the oysters cultured in the earthen pond (P < 0.05). The mean survival rate of sub-adult oysters cultured in the earthen pond (99.8 ± 0.2%) was significantly higher than for those cultured in the mangrove canal (66.7 ± 31.4%). Decreased density from the loss of sub-adult oyster nursery culture in the mangrove canal led to higher growth performance than in the earthen pond. However, no difference was found for the fraction of oysters larger or smaller than 5 cm for the two culture sites (P < 0.05). A significant difference was noted in the Condition Index (CI) between the two culture sites (P < 0.05). The high primary productivity in mangroves is a major supporter of higher CI in sub-adult oysters cultured in mangrove canals versus in earthen ponds. Water exchange in the earthen pond to maintain calcium and magnesium concentrations resulted in no differences in the shell compressibility of sub-adult oysters compared with those cultured in the mangrove canal.

A Comparative Study of Epidemiology, Clinicopathologic Features and Outcome of Colorectal Cancer Patients between Ain Shams University Hospitals and Luxor International Hospital

QJM ◽  
2021 ◽  
Vol 114 (Supplement_1) ◽  
Author(s):  
Tarek Hussein Kamel ◽  
Amr Lotfy Farag ◽  
Dr/Sherif Hassanin Ahmed ◽  
Chresteen Talaat Samy Hanna
Keyword(s):  
Colorectal Cancer ◽  
Comparative Study ◽  
Disease Free Survival ◽  
University Hospital ◽  
Treatment Modalities ◽  
Clinicopathologic Features ◽  
Free Survival ◽  
Significant Difference ◽  
Group A ◽  
Group B

Abstract Background Colorectal cancer (CRC) is one of the leading causes of mortality and morbidity in the world. It is the third most common malignancy after lung & breast and the fourth leading cause of cancer-related deaths worldwide, accounting for approximately 1,400,000 new cases and about 700,000 deaths worldwide. Objectives The aim of this retrospective study is to compare the epidemiology, clinicopathologic features, different treatment modalities and outcomes regarding disease free survival (DFS), progression free survival (PFS) & overall survival (OS) of colorectal cancer disease between cases presented to Ain shams university hospital & to Luxor international hospital in 3 consecutive years. Patients and Methods The study is retrospective comparative study. Clinical oncology department in Ain Shams University Hospital and Luxor International Hospital. The data Collected from January 2013 to December 2015. This study analyzed hospital records of patients who diagnosed with colorectal cancer (CRC) and allocated into two groups: Group A: CRC patients presented to Ain-Shams University Hospital from January 2013 to December 2015, group B: CRC patients presented to Luxor International Hospital from January 2013 to December 2015. Results There was no statistically significant difference regarding age parameter in LIH when compared to ASU, but the study was consistent with higher incidence in patients who were aged more than forty- accounted about 70.5% in all CRC cases. Cases less than 40 years old, in group A were 35.2%, while in Group B were 23.5%. Even there was no statistically significant difference but it may be attributable to more westernization in Lower Egypt. Other explanation may be due to decreased low socioeconomic status and different lifestyle factors in more developing region what increase risk of colorectal cancer. Among our cases, there is no statistically significant difference regarding gender between the two hospitals. Both sexes almost were affected equally, females appeared to be at a slightly higher risk of developing CRC cancer with current prevalence 1.3:1 in ASU group, and 1.1:1 in LIH group. Conclusion The need to increase awareness about CRC in Egypt especially upper Egypt, is recommended. An awareness campaign should be performed to promote detection of CRC at its earliest and most curable stage by recognizing early symptoms and enabling early referrals for colonoscopy. Those at higher risk should be offered more intensive surveillance. Similarity of the data from different centers suggests that this is the picture of colorectal cancer typical of Egypt.

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