Teachers' pedagogical content knowledge (PCK) is highly important for effective design and implementation of school teaching. Thus, the current status, development and efficacy of this knowledge, its relationships with teaching quality parameters, and its impact on students' learning processes and success, require rigorous examination. Thoroughly validated, objective and reliable test instruments that are highly sensitive to changes in variables of proven knowledge‐related relevance in teacher education are also required. Previous attempts to design such instruments for assessing science teachers' PCK have largely focused on mathematical content. Therefore, here we present an instrument (the pedagogical content knowledge in biology inventory, PCK‐IBI), based on conceptualizations of teachers' professional competence, for assessing secondary school pre‐service biology teachers' PCK. In a series of three evaluations and refinements it was tested with samples of N = 274 and N = 432 German pre‐service as well as one sample of n = 65 German pre‐service and n = 35 German in‐service biology teachers. Item analysis, scale analysis and empirically obtained indicators of validity suggest that the final 34‐item‐version of the PCK‐IBI is unidimensional, provides objective test scores and enables reliable and valid registration of pre‐service biology teachers' PCK. Thus, hypotheses regarding specific aspects of the model on which the PCK‐IBI's construction is based on are empirically supported. The results of our study provide empirical support for the instrument's potential utility.

The Conceptual Model Map (CMM) presented here is intended to show the connections between different theories and constructs in the field of health and nutrition behavior (including literacy models, the knowledge–attitude(s)–practice(s) survey structure (KAP), behavior change theories, and Maslow’s pyramid of needs). The CMM can be used as a map to locate existing and future studies, to show their range of effect as well as their limitations. In this context, the CMM also reveals reasons for the attitude/intention–behavior gap.

German preservice teachers always study two teaching subjects instead of only one. This offers an almost paradigmatic approach for the investigation of effects of specific subject combinations on professional competence. So far, few studies focused on potential beneficial effects or risks on preservice teachers' motivational orientations, beliefs, and professional knowledge. In our exploratory study, we chose a cross‐sectional quasi‐experimental design to compare preservice teachers studying a combination of biology and chemistry to those who study only one of these two subjects and any other, as it is expected that the differences between less similar subjects (such as chemistry and art) are greater than those between two science subjects. A total ofN = 570 preservice teachers with a minimum of one of their subjects being biology or chemistry were recruited in 12 universities in Germany. Nonparametric analyses using Westenberg–Mood's median test show that preservice teachers studying both biology and chemistry score significantly different on some central aspects of professional competence compared to those who study only one of the two subjects and any other. However, advantages regarding motivational orientations and professional knowledge can only be found for the domain of biology, whereas in the domain of chemistry it does not seem to matter which second subject is studied beside chemistry. Furthermore, students taking both sciences show a significantly lower educational motivation and corresponding self‐concept, suggesting that dual science students' teaching and learning beliefs are less education‐focused than those of students combining one science with a social or language subject. Our findings regarding synergy effects of the dual study of different natural sciences on aspects of professional knowledge can be relevant beyond the specific German context, that is, they can help to supplement or restructure a university curriculum.

Despite the need for enduring preventive behavior in times of the COVID-19 pandemic, several counteracting behavioral reactions can be observed worldwide. Considering the grave consequences resulting from such health-related risk behavior, we carried out an online questionnaire study to identify personal characteristics that frame a motivational sketch of those who refuse to follow the pandemic-related preventive measures. Our results from a sample of N = 570 German participants already indicate obvious changes in relevant variables in the four-week investigation period during the pandemic’s initial phase (25 March to 22 April 2020). Above all, the willingness to take preventive measures decreased, as did the assessment of the pandemic’s severity. The perceived own vulnerability also turned out to be clearly age-dependent and, overall, our sample showed a negative affectivity deviating distinctively from a reference sample. These and other findings allow for identification of sources for public health interventions that can help to increase compliance with required prevention behavior, and thus, counteract COVID-19.

Several empirical studies have shown that, during COVID-19-caused distance learning, many learners were struggling to realize the extent of self-regulated learning activities that were required to ensure the ongoing learning progress. Due to the significance of self-regulated learning regarding students’ learning success, the construct of metacognition also gained in importance, since corresponding skills are closely related to successful self-direction in learning. In our study, we focused on the learning strategy of concept mapping (CM), which is (1) directly related to beneficial effects on learning and retention performance, as well as (2) considered to cause constructive side-effects regarding metacognitive skills and, thus, self-regulated learning. To grasp CM’s full potential in terms of improving cognition-related learning performance, however, appropriate training of this learning strategy seems to be required. This raised the question of whether and to what extent appropriate CM training is also necessary to improve the metacognitive skills of our participants (N = 73 university students of different majors) in terms of the accuracy of their judgments of learning (JOLs). Although we were able to show, in a previous study, that the CM-training intensity did not affect the absolute level of these JOLs, the results of our current study show that there is, nevertheless, a significant effect in terms of the JOLs’ accuracy when considering their relationships to objective learning performance. Thus, CM training intensity affects the competence of metacognitive monitoring. In addition, we found that scaffolding- and feedback-including training conditions tend to counteract systematic misjudgments regarding the domain of conceptual knowledge, in particular. Practical implications and recommendations that can be derived from these results are discussed.

Concept Mapping (CM) is a learning strategy to organize and understand complex relationships, which are particularly characteristic of the natural science subjects. Previous research has already shown that constructing concept maps can promote students’ meaningful learning in terms of deeper knowledge and its more flexible use. While researchers generally agree that students need to practice using CM successfully for learning, key parameters of effective CM training (e.g., content, structure, and duration) remain controversial. This desideratum is taken up by our study, in which three different training approaches were evaluated: a CM training with scaffolding and feedback vs. a CM training without additional elements vs. a non-CM control training. In a quasi-experimental design, we assessed the learning outcome of N = 73 university students who each had participated in one of the trainings before. Our results suggest that an extensive CM training with scaffolding and feedback is most appropriate to promote both CM competence and acquisition of knowledge. From an educational perspective, it would therefore be advisable to accept the time-consuming process of intensive practice of CM in order to enable students to adequately use of the strategy and thus facilitate meaningful learning in terms of achieving sustained learning success.