An analysis of the effects of company culture, education and experience on confirmation bias levels of software developers and testers

In this paper, we present a preliminary analysis of factors such as company culture, education and experience, on confirmation bias levels of software developers and testers. Confirmation bias is defined as the tendency of people to verify their hypotheses rather than refuting them and thus it has an effect on all software testing

Confirmation Bias in Software Development and Testing: An Analysis of the Effects of Company Size, Experience and Reasoning Skills

During all levels of software testing, the goal should be to fail the code to discover software defects and hence to increase software quality. However, software developers and testers are more likely to choose positive tests rather than negative ones. This is due to the phenomenon called confirmation bias which is defined as the tendency to verify one’s own hypotheses rather than trying to refute them. In this work, we aimed at identifying the factors that may affect confirmation bias levels of software developers and testers. We have investigated the effects of company size, experience and reasoning skills on bias levels. We prepared pen-and-paper and interactive tests based on two tasks from cognitive psychology literature. During pen-and-paper test, subjects had to test given hypotheses, whereas interactive test required both hypotheses generation and testing. These tests were conducted on employees of one large scale telecommunications company, three small and medium scale software companies and graduate computer engineering students resulting in a total of eighty-eight subjects. Results showed regardless of experience and company size, abilities such as logical reasoning and strategic hypotheses testing are differentiating factors in low confirmation bias levels. Therefore, education and/or training programs that emphasize mathematical reasoning techniques are useful towards production of high quality software. Moreover, in order to investigate the relationship between code defect density and confirmation bias of software developers, we performed an analysis among developers who are involved with a software project in a large scale telecommunications company. We also analyzed the effect of confirmation bias during software testing phase. Our results showed that there is a direct correlation between confirmation bias and defect proneness of the code

Spontaneous rupture of pregnancy luteoma

Luteoma is a rare condition in pregnancy. In this article, we aimed to present a rare case of pregnancy luteoma detected during cesarean section and pathologically in the context of literature information

Spontaneus pregnancy after obstructive nabothian cyst treatment

Nabothian cysts are common and silent retention cysts of the uterine cervix with no particular intervention required. It is quite rare to reach a size of more than 4 cm and it is a diagnostic dilemma to differ it from adenoma malignum. Here we report a case a woman who conceived after 3.5 cm of naboth cyst treatment

Vaginismus treatment with libido increase and practice

Vaginismus is an involuntary contraction of the vaginal muscles which makes sexual intercourse difficult or impossible. It is one of the more common female psychosexual problems. The cases illustrate that it is important to rule out the possibility of vaginismus among patients with infertility. The aim of the report was to share with readers the cases with common presentations and underlying psychological causes

Torsion of term gravid uterus with a large leiomyoma

Torsion of gravid uterus is a rare obstetric event and it is almost always diagnosed during cesarean section. Leiomyomas and previous cesarean sections are predisposing risk factors. We report a case of 180 degree torsion of a term gravid uterus with only symptom of hematuria

Diagnosis of endometrial pathologies: transvaginal sonography versus hysteroscopy

Background: Abnormal uterine bleeding (AUB) constitutes 69% of all gynecological complaints in the peri- and postmenopausal age groups. The aim of present study was to compare the accuracy of transvaginal sonography and hysteroscopy in diagnosing intracavitary pathologies in women with abnormal uterine bleeding.Methods: A total of 303 premenopausal women with abnormal uterine bleeding who admitted to the gynecology outpatient clinic of the Istanbul Kanuni Sultan Suleyman Research and Training Hospital, Istanbul, Turkey, between April 2010 and July 2015, and received hysteroscopy, were evaluated retrospectively. The collected data were assembled from the computerised database. All patients underwent pelvic examination, transvaginal ultrasonography, office hysteroscopy and hystopathologic evaluation. Patients with normal appearing uterine cavities on hysteroscopy additionally underwent full curettage. The pathology reports were considered to be the definitive diagnoses of patients. Transvaginal ultrasonography and office hysteroscopy findings were compared with the pathological reports and the sensitivity, specificity, positive and negative predictive values, accuracy values and likelihood ratios of office hysteroscopy and transvaginal ultrasonography were calculated for the detection of endometrial abnormalities.Results: Endometrial polyps were the most commonly identified pathology with a rate of 77.56%. The sensitivity, specificity, positive and negative predictive values of transvaginal sonography for diagnosing endometrial pathologies were 77%, 32%, 75% and 32%, respectively. The same values for hysteroscopy were 93%, 44%, 88% and 48% respectively. Transvaginal sonography had a sensitivity of 20% with a specificity of 4% for submucous myomas. The sensitivity, specificity, positive and negative predictive values of hysteroscopy for submucous myomas when compared to histopathology were 100% for all.Conclusions: The diagnostic accuracy of office hysteroscopy for focal lesions such as polyps or submucous myomas is higher than the accuracy of transvaginal ultrasonography. Due to its high diagnostic accuracy, lower complication rate and the ability to obtain direct biopsy specimens while providing simultaneous treatment, we believe that hysteroscopy will retain its place as the gold standard procedure for the investigation of endometrial pathologies

Combination of myasthenia gravis and HELLP Syndrome in pregnancy: case report and literature review

Myasthenia gravis (MG) is an autoimmune disorder of the neuromuscular junction. Preeclampsia/HELLP Syndrome is a potentially life-threatening pregnancy complication. The combination of HELLP Syndrome and MG is challenging because the preferred treatment regimens for both conditions generally contradict each other. Our aim is to describe the management options when these two diseases occur simultaneously. We present a case in which a woman with an established diagnosis of MG developed HELLP Syndrome at 31 weeks gestation. Magnesium sulfate prophylaxis was not utilized because of the patient’s MG diagnosis. A cesarean delivery was performed. Reported cases with combined diagnoses of MG and preeclampsia/HELLP Syndrome are reviewed and adjustments to treatment plans are discussed. Management of such patients should be done with a multidisciplinary approach in advanced medical centers with careful consideration of the medications used

Evaluation of Soft Tissue Adaptation During Retention Period

The aim of this study was to evaluate skeletal and dental stability and the adaptation of tongue and perioral soft tissue during retention treatment period. The sample included 22 Angle class I and/or class II, skeletal class I (15 females, 7 males, mean chronologic age 17.56±1.2) cases who had 4 premolar extracted. 18 measurements on lateral cephalometric and anteroposterior films, 4 measurements on dental casts, 16 measurements of the soft tissue were carried out at the end of active orthodontic treatment (T0), at the sixth (T1) and the ninth months (T2) of retention treatment period and evaluated statistically using ‘Wilcoxon test'. U6s(V) measurement showed a significant increase during T0-T1 (p<0.05) and L1s(V) measurement increased significantly during T1-T2 and T0-T2 (p<0.05). The total lingual pressures at rest and during swallowing were found significantly more than the total vestibule pressures in all retention treatment periods (T0,T1,T2) (p<0.01). Teeth positions were stable during retention although lingual pressure was more than lip and cheek pressures. Skeletal, dental measurements and soft tissue adaptation at rest were stable at the end of retention