Background: Patients diagnosed with melanoma frequently search the internet for treatment information, including novel and complex immunotherapy. However, health literacy is limited among half of the German population, and no assessment of websites on melanoma treatment has been performed so far. Objective: The aim of this study was to identify and assess the most visible websites in German language on melanoma immunotherapy. Methods: In accordance with the common Web-based information-seeking behavior of patients with cancer, the first 20 hits on Google, Yahoo, and Bing were searched for combinations of German synonyms for “melanoma” and “immunotherapy” in July 2017. Websites that met our predefined eligibility criteria were considered for assessment. Three reviewers independently assessed their quality by using the established DISCERN tool and by checking the presence of quality certification. Usability and reliability were evaluated by the LIDA tool and understandability by the Patient Education Materials Assessment Tool (PEMAT). The Flesch Reading Ease Score (FRES) was calculated to estimate the readability. The ALEXA and SISTRIX tools were used to investigate the websites’ popularity and visibility. The interrater agreement was determined by calculating Cronbach alpha. Subgroup differences were identified by t test, U test, or one-way analysis of variance. Results: Of 480 hits, 45 single websites from 30 domains were assessed. Only 2 website domains displayed a German quality certification. The average assessment scores, mean (SD), were as follows: DISCERN, 48 (7.6); LIDA (usability), 40 (2.0); LIDA (reliability), 10 (1.6); PEMAT, 69% (16%); and FRES, 17 (14), indicating mediocre quality, good usability, and understandability but low reliability and an even very low readability of the included individual websites. SISTRIX scores ranged from 0 to 6872 and ALEXA scores ranged from 17 to 192,675, indicating heterogeneity of the visibility and popularity of German website domains providing information on melanoma immunotherapy. Conclusions: Optimization of the most accessible German websites on melanoma immunotherapy is desirable. Especially, simplification of the readability of information and further adaption to reliability criteria are required to support the education of patients with melanoma and laypersons, and to enhance transparency.

The diploma thesis deals with the book genre Erstlesebuch (book for beginner readers) as educational material in the context of foreign language education at the levels of Basic Users (A0/1-A2). In the context of first language teaching, this specific genre belongs to the field of literature, the didactic of literature, and the didactic of reading. The goal of this diploma thesis is to present different possibilities of didactic activities with Erstlesebuch in the context of second language teaching and to formulate criteria for choosing an appropriate text. The theoretical part describes the context of foreign language education and the role of literature in this context, with consideration for the Common European Framework of Reference for Languages. The theoretical part also presents the specifics of the book genre Erstlesebuch itself. The empirical part of this thesis is based on several investigations: firstly on a complex analysis (readability and text structure) of six Erstlesebuch and secondly on empirical research in reading with schoolchildren at higher grades of an elementary school (children at the age of 13-15). These results are compared to the results of similar research done with Austrian beginner readers (children between the ages of 7 and 9). The final part of the thesis concludes...