The eHEALS (eHealth Literacy Scale) was developed to assess consumers' ability to use electronic health resources. It measures knowledge, comfort, and perceived skills in finding, evaluating, and applying electronic health information. The scale consists of 8 items and was tested in a sample of 664 adolescents aged 13 to 21. The scale showed good internal consistency (α = .88) and moderate test-retest reliability (r = .68 to .40). Principal components analysis revealed a single factor solution, explaining 56% of the variance. The eHEALS is a self-report tool that can be used to evaluate eHealth literacy in clinical and public health settings. It has potential to identify individuals who may benefit from eHealth interventions. Further research is needed to examine the applicability of the eHEALS to other populations and settings. The eHEALS is a reliable and valid measure of eHealth literacy, showing promise as a tool for assessing consumer comfort and skill in using information technology for health. It can help health practitioners identify those who may or may not benefit from eHealth resources. The eHEALS is based on six core skills: traditional literacy, health literacy, information literacy, scientific literacy, media literacy, and computer literacy. It was developed through a literature review and iterative item reduction process. The scale was pilot tested with a group of adolescents and revised based on feedback. The eHEALS was administered in a randomized controlled trial evaluating eHealth programs. The study found that eHealth literacy scores were higher among males, but no significant differences were found at post-intervention and follow-up. The eHEALS is a useful tool for assessing eHealth literacy in health care settings. It can help identify skill gaps and support health promotion planning. The eHEALS is a promising measure of eHealth literacy, showing potential for use in clinical and public health settings. It can help health practitioners and consumers assess their ability to use eHealth resources. The eHEALS is a reliable and valid measure of eHealth literacy, showing promise as a tool for assessing consumer comfort and skill in using information technology for health. It can help health practitioners identify those who may or may not benefit from eHealth resources. Further research is needed to examine the applicability of the eHEALS to other populations and settings. The eHEALS is a reliable and valid measure of eHealth literacy, showing promise as a tool for assessing consumer comfort and skill in using information technology for health. It can help health practitioners identify those who may or may not benefit from eHealth resources.The eHEALS (eHealth Literacy Scale) was developed to assess consumers' ability to use electronic health resources. It measures knowledge, comfort, and perceived skills in finding, evaluating, and applying electronic health information. The scale consists of 8 items and was tested in a sample of 664 adolescents aged 13 to 21. The scale showed good internal consistency (α = .88) and moderate test-retest reliability (r = .68 to .40). Principal components analysis revealed a single factor solution, explaining 56% of the variance. The eHEALS is a self-report tool that can be used to evaluate eHealth literacy in clinical and public health settings. It has potential to identify individuals who may benefit from eHealth interventions. Further research is needed to examine the applicability of the eHEALS to other populations and settings. The eHEALS is a reliable and valid measure of eHealth literacy, showing promise as a tool for assessing consumer comfort and skill in using information technology for health. It can help health practitioners identify those who may or may not benefit from eHealth resources. The eHEALS is based on six core skills: traditional literacy, health literacy, information literacy, scientific literacy, media literacy, and computer literacy. It was developed through a literature review and iterative item reduction process. The scale was pilot tested with a group of adolescents and revised based on feedback. The eHEALS was administered in a randomized controlled trial evaluating eHealth programs. The study found that eHealth literacy scores were higher among males, but no significant differences were found at post-intervention and follow-up. The eHEALS is a useful tool for assessing eHealth literacy in health care settings. It can help identify skill gaps and support health promotion planning. The eHEALS is a promising measure of eHealth literacy, showing potential for use in clinical and public health settings. It can help health practitioners and consumers assess their ability to use eHealth resources. The eHEALS is a reliable and valid measure of eHealth literacy, showing promise as a tool for assessing consumer comfort and skill in using information technology for health. It can help health practitioners identify those who may or may not benefit from eHealth resources. Further research is needed to examine the applicability of the eHEALS to other populations and settings. The eHEALS is a reliable and valid measure of eHealth literacy, showing promise as a tool for assessing consumer comfort and skill in using information technology for health. It can help health practitioners identify those who may or may not benefit from eHealth resources.