Validation of the Adapted German Versions of the Dementia Knowledge Assessment Tool 2, the Dementia Attitude Scale, and the Confidence in Dementia Scale for the General Population

Translation, validation, and comparison of genetic knowledge scales in Greek and German

Introduction : Advances in biosciences have significantly expanded our knowledge and capabilities in medicine and technology. Genetic tests can now predict hereditary predisposition or susceptibility to diseases, while gene-editing tools like CRISPR/Cas enable easy repair of disease genes in both somatic and germline cells, ensuring permanent genome correction. Despite these advancements, there is a shortage of valid instruments for studying the knowledge about these technologies. To fill this gap, our study aims to translate and validate various scales to effectively measure the public's knowledge of genetics. Methods: A convenience sample of N = 567 (Germany n = 317, Greece n = 250) participants completed a Google Forms questionnaire between December 2022 and June 2023, which included the General Knowledge of Genes and Heredity (GKGH), Knowledge about Gene-Environment Interaction (KGEI), and Knowledge of Modern Genetics and Genomics (KMGG) questionnaires. Analyses included internal consistency, structural validity, construct validity, and retest reliability with a subset of n = 72 (DE) and n = 50 (GR). Correlation analyses and group differences were evaluated for gender, education, religiosity, age, prior experience with genetic testing, and preferences toward potential providers of genetic testing. This study used the STROBE checklist for reporting. Results: The GKGH exhibited low values in internal consistency and item analysis, along with a ceiling effect within the German group. However, it demonstrated good values in retest and construct validity. In the Greek group, all properties were highly satisfactory. The KMGG consistently displayed excellent properties across all analyses, whereas the KGEI only showed convincing results in construct validity and item analysis. Discussion: The GKGH and KMGG demonstrated strong psychometric properties with varying difficulty levels dependent on the sample, with the German sample demonstrating a notably higher understanding of genetic technologies. Despite displaying acceptable properties, the KGEI fell short of measuring what its title suggests. Participants' level of education showed a significant correlation with knowledge of genetic technologies, and only in the Greek sample did experiences with genetic tests influence knowledge. Preferences regarding availability of genetic testing are comparable between the two countries, with variations influenced by factors such as age, gender and religiosity.

Nursing Students' Knowledge and Attitudes Toward Alzheimer's Disease in Saudi Arabia: A Cross-Sectional Study

Background The elderly population continues to grow worldwide, including in Saudi Arabia. Caring for older people with Alzheimer's and dementia disease is very challenging and merits specific skills, knowledge, and attitudes among nurses and nursing students. Consequently, nursing students must be prepared with the appropriate knowledge and attitude to care for patients affected by Alzheimer's in their future professions. This study aimed to investigate the knowledge and attitudes of Alzheimer's disease (AD) among bachelor's nursing students in Saudi Arabia. Methods This study used a descriptive cross-sectional design, and data were collected via an online questionnaire comprising two main instruments: the Alzheimer's Disease Knowledge Scale (ADKS) and the Dementia Attitudes Scale (DAS). A total of 477 undergraduate nursing students participated in the study at four universities in four regions of Saudi Arabia. Result The results indicated that Saudi nursing students exhibited insufficient knowledge regarding individuals with AD, reflected by a mean ADKS score of 13.83 out of 30. Yet, they displayed positive attitudes, as indicated by a mean DAS score of 99.29 out of 140. Nursing students in their third year and those who had family members with AD had a higher significant score regarding their knowledge of AD than nursing students who were in their fourth year or those who did not have family members who had AD. Additionally, nursing students aged 20 to 25 years, as well as nursing students in their fourth year, had more positive attitudes toward working with AD patients. Conclusions In conclusion, this study revealed that although many nursing students have a positive attitude toward working with AD patients, they have insufficient knowledge of AD. Therefore, there is an urgent necessity for enhanced educational initiatives, encompassing both greater depth and improved quality, as well as increased clinical training to address this knowledge gap among nursing students in Saudi Arabia.

Dementia Knowledge, Attitude toward Dementia, and Confidence in Dementia Care: Impact of a Dementia Training on German Nursing Students

Background

The number of people with dementia (PwD) in acute care hospitals is steadily increasing, posing a challenge for those who work closely with patients. To date, no German study has addressed the extent to which prospective nurses benefit from dementia training in terms of their knowledge, attitudes, and confidence in caring for PwD.

Objective

The aim of this study is to investigate whether a validated dementia training for registered nurses can positively change nursing students' knowledge about dementia, their attitude toward PwD, and their confidence in caring for them, as well as the stability over time.

Methods

In the one-group pre-test, post-test design, a sample of 81 nursing students was recruited from two nursing schools in Germany between May and June 2023. They completed a questionnaire consisting of the Dementia Knowledge Assessment Scale, the Dementia Attitude Scale, and the Confidence in Dementia Scale, as well as sociodemographic questions and experiences with PwD at three measurement points. The data were analyzed using the Wilcoxon test and repeated measures ANOVA.

Results

The training has a significant effect on knowledge in dementia (z = -5.07, p < 0.001), attitude toward PwD (z = -4.42, p < 0.001), and confidence in caring for them at the post-test (z = -3. 21, p < 0.001, r = 0.36). The repeated measures ANOVA shows stability over time only for dementia knowledge.

Conclusions

The results indicate the need for further research in this field as well as the validation of the dementia training specifically addressing nursing students.

The Dementia Knowledge Assessment Scale, the Knowledge in Dementia Scale, and the Dementia Knowledge Assessment Tool 2: Which Is the Best Tool to Measure Dementia Knowledge in Greece?

Background

Measuring dementia knowledge can be a valuable tool for assessing the effectiveness of dementia awareness activities, identifying the potential benefits of dementia training programs, and breaking down common myths and stereotypes about dementia.

Objective

To compare the psychometric properties of three widely used dementia knowledge tools, the Dementia Knowledge Assessment Tool 2 (DKAT2-G), the Dementia Knowledge Assessment Scale (DKAS-G), and the Knowledge in Dementia Scale (KIDE-G) in the Greek adult population.

Methods

A convenience sample of 252 participants from the general population completed the survey online. Statistical analyses included Cronbach's internal reliability, retest reliability, factor analysis, concurrent and construct validity, and floor and ceiling effects.

Results

The DKAS-G had the most appropriate reliability levels (Cronbach's alpha  =  0.845; retest reliability  =  0.921), whereas the DKAT2-G had satisfactory indexes (Cronbach's α= 0.760; retest reliability  =  0.630). The KIDE-G showed unsatisfactory reliability (Cronbach's α= 0.419; retest reliability  =  0.619). Construct validity was confirmed for all questionnaires, showing that all of them detected participants with pre-existing knowledge of dementia. Confirmatory factor analysis revealed a four-factor model for the DKAS-G and proposed the removal of 5 items. Floor and ceiling effects were found for the DKAT2-G and the KIDE-G, mainly among those who had previously participated in dementia training.

Conclusions

The DKAS-G was found to have the highest levels of reliability and validity. The results prove that the DKAS-G meets the requirements for measuring dementia knowledge and evaluating dementia training programs in health professionals, caregivers, and the general population.

Measuring Dementia Knowledge in German: Validation and Comparison of the Dementia Knowledge Assessment Scale, the Knowledge in Dementia Scale, and the Dementia Knowledge Assessment Tool 2

BACKGROUND

Assessing dementia knowledge is critical for developing and improving effective interventions. There are many different tools to assess dementia knowledge, but only one has been validated in German so far.

OBJECTIVE

To validate two tools for assessing dementia knowledge-the Dementia Knowledge Assessment Scale (DKAS-D) and the Knowledge in Dementia Scale (KIDE-D) for the German general population-and compare their psychometric properties with the Dementia Knowledge Assessment Tool 2 (DKAT2-D).

METHODS

A convenience sample of 272 participants completed online surveys. Analyses included internal consistency, structural validity, construct validity through the known-groups method, retest-reliability with a subgroup of n = 88, and floor and ceiling effects. This study used the STROBE checklist.

RESULTS

Internal consistency was acceptable for DKAT2-D (α= 0.780), very good for DKAS-D (α= 0.873), and poor for KIDE-D (α= 0.506). Construct validity was confirmed for all questionnaires. Retest-reliability was good for DKAT2-D (0.886; 0.825-0.926) and KIDE-D (0.813; 0.714-0.878), while it was great for DKAS-D (0.928; 0.891-0.953). Trends toward ceiling effects were observed for DKAT2-D and KIDE-D, but not for DKAS-D. The principal component analysis did not reveal a coherent structure for DKAT2-D or KIDE-D, while the confirmatory factor analysis proposed the removal of 5 items for DKAS-D resulting in the shortened DKAS20-D, which had nearly identical properties.

CONCLUSION

Both DKAS-D and its shortened version, DKAS20-D, are reliable instruments for evaluating programs intended for the general population, as they were found to be convincing in all aspects.