Ensuring Content Representativeness: Perceptions of Senior High School Teachers in Ghana

For a meaningful classroom assessment to be feasible, teachers must ensure adequate content representativeness when crafting their items. The study sought to find out the perceptions of senior high school teachers on how well they ensure content representativeness in their classroom assessment procedures in Ghana. Underpinned by the theory of validity, the study used the qualitative research approach. The purposive sampling procedure was used to select a sample of 25 participants for the study. The interview guide was used to collect data for the study. The data was analysed manually using the thematic approach. The results of the study revealed that senior high school teachers least ensure content representativeness in their assessment procedures because they fail to develop and use a table of the test specification. In furtherance to this, the study showed that senior high school teachers do not consult measurement experts or curriculum planners to thoroughly judge the items the teachers craft in ensuring content representativeness. It is recommended among others that there should be the need for educating teachers on what table of a test specification is, and how to develop and use it

Bank opacity and risk-taking: Evidence from analysts’ forecasts

We depart from existing literature by invoking analysts’ forecasts to measure banking system opacity and then investigate the impact of such opacity on bank risk-taking, using a large panel of US bank holding companies, 1995-2013. We uncover three new results. Firstly, we find that opacity increases insolvency risks among banks. Secondly, we establish that the relationship between opacity and bank risk-taking is accentuated by the degree of banking market competition. Thirdly, we show that the bank business model moderates the risk-taking incentives of opaque banks, albeit only marginally. Overall, these findings suggest that the analysts’ forecast measure of bank opacity is useful for understanding risk-taking by publicly-traded banks, with important implications for bank stability

Weight management merits attention in women with infertility: A cross-sectional study on the association of anthropometric indices with hormonal imbalance in a Ghanaian population

OBJECTIVE: This study determined the association of anthropometric indices with hormonal imbalance among infertile women in a Ghanaian population. RESULTS: Follicle stimulating hormone (FSH) levels (18.47 vs. 8.67, p-value = 0.002), and luteinizing hormone (LH) (12.43 vs. 8.01, p-value = 0.044) were higher in women with primary infertility compared with women presenting with secondary infertility. Waist circumference (WC) and waist-to-height ratio (WHtR) showed significant negative partial correlation with prolactin in both primary and secondary infertile women. Also a significant negative partial correlation was observed between BMI and prolactin in secondary infertile women only. Waist-to-hip ratio (WHR) showed a positive association with LH in both primary and secondary infertility. WHR also showed significant positive correlation to LH/FSH ratio in secondary infertility whereas body adiposity index (BAI) showed a negative correlation to LH/FSH ratio. In a correlation analysis of anthropometric measures with hormonal profile and causes of infertility as a fixed factor, the association between anthropometric indices and fertility hormones was largely dependent on the underlying causes of infertility

Adverse effect of increased left ventricular wall thickness on five year outcomes of patients with negative dobutamine stress

<p>Abstract</p> <p>Background</p> <p>To determine if patients without dobutamine induced left ventricular wall motion abnormalities (WMA) but an increased LV end-diastolic wall thickness (EDWT) exhibit a favorable cardiac prognosis.</p> <p>Results</p> <p>Between 1999 and 2001, 175 patients underwent a dobutamine stress cardiovascular magnetic resonance (DCMR) procedure utilizing gradient-echo cines. Participants had a LV ejection fraction >55% without evidence of an inducible WMA during peak dobutamine/atropine stress. After an average of 5.5 years, all participants were contacted and medical records were reviewed to determine the post-DCMR occurrence of cardiac death, myocardial infarction (MI), and unstable angina (USA) or congestive heart failure (CHF) warranting hospitalization.</p> <p>In a multivariate analysis, that took into account Framingham and other risk factors associated with cardiac events, a cine gradient-echo derived LV EDWT ≥12 mm was associated independently with an increase in cardiac death and MI (HR 6.0, p = 0.0016), and the combined end point of MI, cardiac death, and USA or CHF warranting hospitalization (HR 3.0, p = 0.0005).</p> <p>Conclusion</p> <p>Similar to echocardiography, CMR measures of increased LV wall thickness should be considered a risk factor for cardiac events in individuals receiving negative reports of inducible ischemia after dobutamine stress. Additional prognostic studies of the importance of LV wall thickness and mass measured with steady-state free precession techniques are warranted.</p

Determinantes dos honorários de auditoria para Portugal e Espanha

A liberalização dos serviços de auditoria em Portugal , com a eliminação em 2005, da tabela que fixava honorários mínimos baseados em padrões de dimensão da empresa auditada desperta o interesse em percecionar quais são os fatores que originam a determinação dos honorários de auditoria. Em Espanha, o conjunto de escândalos fina nceiros de que tem sido alvo tem colocado os honorários de auditoria no foco principal. A análise inclui uma amostra de 40 empresas cotadas em Portugal e 113 empresas cotadas em Espanha p ara o ano de 2013 utilizando a regressão dos mínimos quadrados (OSL). Os resultados indicam que em Espanha, os honorários são fixados principalmente em função da dimensão, complexidade e risco de auditoria, sendo que quanto maior a dimensão, a complexidade e o risco da empresa auditada, maiores os honorários de auditoria. E m Portugal, a dimensão da empresa auditada foi considerado o único fator que contribui para a determinação dos honorários em Portugal. Os resultados obtidos permitem - nos assim concluir que a determinação dos honorários de auditoria em Portugal é muito dife rente da dos honorários das empresas cotadas em Espanh

Variation in optineurin (OPTN) allele frequencies between and within populations

PURPOSE: To evaluate the extent to which mutations in the optineurin (OPTN) glaucoma gene play a role in glaucoma in different populations. METHODS: Case-controlled study of OPTN sequence variants in individuals with or without glaucoma in populations of different ancestral origins and evaluate previous OPTN reports. We analyzed 314 subjects with African, Asian, Caucasian and Hispanic ancestries included 229 cases of primary open-angle glaucoma, 51 cases of juvenile-onset open-angle glaucoma, 33 cases of normal tension glaucoma, and 371 controls. Polymerase chain reaction-amplified OPTN coding exons were resequenced and case frequencies were compared to frequencies in controls matched for ancestry. RESULTS: The E50K sequence variant was identified in one individual from Chile with normal tension glaucoma, and the 691_692insAG variant was found in one Ashkenazi Jewish individual from Russia. The R545Q variant was found in two Asian individuals with primary open-angle glaucoma; one of Filipino ancestry and one of Korean ancestry. In addition to presenting OPTN allele frequencies for Caucasian and Asian populations that have been the subject of previous reports, we also present information for populations of Hispanic and black African ancestries. CONCLUSIONS: Our study contributes additional evidence to support the previously reported association of the OPTN E50K mutation with glaucoma. After finding an additional 691_692insAG OPTN variant, we can still only conclude that this variant is rare. Combined analysis of our data with data from more than a dozen other studies indicates no association of R545Q with glaucoma in most populations. Those same studies disagree in their conclusions regarding the role of M98K in glaucoma. Our analysis of the combined data provides statistically significant evidence of association of M98K with normal tension glaucoma in Asian populations, but not in Caucasian populations; however, the validity of this conclusion is questionable because of large differences in allele frequencies between and within populations. It is currently not possible to tell how much of the underlying cause of the allele frequency difference is attributable to demographic, technical, or ascertainment differences among the studies