Improving Validity and Reliability in Children’s Self Reports of Technology Use

Researchers working in child computer interaction are constantly seeking new methods and new techniques that will enable them to carry out more valid and more reliable research. Much of this research typically considers the design and development of new products and of new interactive techniques and researchers seek to understand how easy such innovations are for children, how much fun they are to use and how attractive they may be for use. The impact of prior technology use on the children’s responses in those contexts is the core concern of this thesis. The thesis provides a set of tools (survey instruments and guidelines) that can be used by the CCI research community to ascertain the prior experience of children with any technology and with any task. These tools are generated using theory, experience and literature and are validated through user studies. The PETT survey tool comprises three questionnaires, CTEQ, CTUQ and CTHQ and an associated user guide that clearly articulates how to use PETT and demonstrates the flexibility of PETT to be used in many contexts. The guidelines (RWC, SWC and SRT) can be applied on three levels, for general use in research with children, in the design of surveys and in the specifics of designing self-report tools for prior technology experience

Constructing the Cool Wall: A Tool to Explore Teen Meanings of Cool

This paper describes the development and exploration of a tool designed to assist in investigating ‘cool’ as it applies to the design of interactive products for teenagers. The method involved the derivation of theoretical understandings of cool from literature that resulted in identification of seven core categories for cool, which were mapped to a hierarchy. The hierarchy includes having of cool things, the doing of cool activities and the being of cool. This paper focuses on a tool, the Cool Wall, developed to explore one specific facet of the hierarchy; exploring shared understanding of having cool things. The paper describes the development and construction of the tool, using a heavily participatory approach, and the results and analysis of a study carried out over 2 days in a school in the UK. The results of the study both provide clear insights into cool things and enable a refined understanding of cool in this context. Two additional studies are then used to identify potential shortcomings in the Cool Wall methodology. In the first study participants were able to populate a paper cool wall with anything they chose, this revealed two potential new categories of images and that the current set of images covered the majority of key themes. In the second study teenagers interpretations of the meaning of the images included in the Cool Wall were explored, this showed that the majority of meanings were as expected and a small number of unexpected interpretations provided some valuable insights

A Method Impact Assessment Framework for User Experience Evaluations with Children

Based upon a review of the literature, this paper presents a Method Impact Assessment Framework. Theoretically synthesized, the framework offers five dimensions: (1) the role of the child, (2) the user experience construct, (3) system, (4) epistemological perspective, (5) Practical and Ethical Concerns. Although other dimensions could have been construed, these were judged to be the most pertinent to understanding evaluation methods with children. The framework thus provides a critical lens in which evaluation methods can be assessed by the Children Computer Interaction (CCI) Community to inform method selection

Respecting, Facilitating and Recognising Children's Contributions in HCI (Extended Abstract)

Child Computer Interaction is concerned with the research, design, and evaluation of interactive technologies for children. Working with children in HCI is rewarding and fun but managing that work so that children are kept comfortable and can participate in meaningful ways is not always easy. This course is based on over 20 years’ experience of working with children in research, design, and evaluation. It will provide attendees with practical tips to organise sessions with children, with signposts to methods for research, design, and evaluation, and will specifically consider the ethics of children's participation with checklists to support us in doing our most ethical work possible

Working Ethically in Participatory Research with Children

In this paper we present the ABCD framework for working ethically with children and young people in participatory design studies. This framework covers A – Agreement and consent made between all participants and interested parties; B – Behaviour of the research team towards the activities, requiring them to examine their motivations and to be honest in their interactions with children; C – Classroom experience in participatory sessions during which children are encouraged to discuss the nature of their participation, and D – Dissemination of the work and planning appropriate follow on activities to ensure that children are informed about the outputs from their contributions. We discuss the process by which we developed the framework, the challenges raised by working in this way with children and the role of values in participatory research

Capturing and Considering Idea Development in School Pupils’ Design Activities

There are many ways to look at the efficacy and value of the inclusion of children in design activities within HCI. Whilst the experience of participation can be highly beneficial for children, there is value, even if it is only to confirm the merit of the children's participation, in looking at the process of ideation and in considering to what extent children can ideate. Whilst design is by nature untethered, being able to capture and consider the diversity of design ideas across multiple design teams and to look at how such ideas are developed, can facilitate reflection and potentially improve practice. This work explores the diversity of ideas and the iterative development of ideas during the incremental design of a mobile game with 26 teen informants working in small groups over four design sessions. A method to visualize the evolution of ideas across design sessions is presented. Groups’ behaviors are mapped to three positions according to how conservative and how innovative the participants were. We explore the implications of our work for practitioners and researchers

Small CCI – Exploring App Evaluation with Preschoolers

Child-Computer Interaction (CCI) is predominantly studied with school aged children. Working with preschool children, generally unable to read or write, involves addressing many challenges around planning, recruitment, and interpretation of findings. There are few examples in the literature of the challenges faced when conducting evaluations of technology with preschool children and very few evaluations conducted for commercial software companies. Our case study paper describes a six-week, twelve session, evaluation study of a commercial app (Lingokids) with children aged three and four in two nursery (preschool / kindergarten) schools. We describe challenges we met and describe how we adapted our plans to fit the context. We show how we were able to explore engagement and learning without gathering any personal data. With our practical tips and reflections, we hope our work will encourage others to work with young children in ways that respect their limited ability to understand assent and participation

The Long-Baseline Neutrino Experiment: Exploring Fundamental Symmetries of the Universe

The preponderance of matter over antimatter in the early Universe, the dynamics of the supernova bursts that produced the heavy elements necessary for life and whether protons eventually decay --- these mysteries at the forefront of particle physics and astrophysics are key to understanding the early evolution of our Universe, its current state and its eventual fate. The Long-Baseline Neutrino Experiment (LBNE) represents an extensively developed plan for a world-class experiment dedicated to addressing these questions. LBNE is conceived around three central components: (1) a new, high-intensity neutrino source generated from a megawatt-class proton accelerator at Fermi National Accelerator Laboratory, (2) a near neutrino detector just downstream of the source, and (3) a massive liquid argon time-projection chamber deployed as a far detector deep underground at the Sanford Underground Research Facility. This facility, located at the site of the former Homestake Mine in Lead, South Dakota, is approximately 1,300 km from the neutrino source at Fermilab -- a distance (baseline) that delivers optimal sensitivity to neutrino charge-parity symmetry violation and mass ordering effects. This ambitious yet cost-effective design incorporates scalability and flexibility and can accommodate a variety of upgrades and contributions. With its exceptional combination of experimental configuration, technical capabilities, and potential for transformative discoveries, LBNE promises to be a vital facility for the field of particle physics worldwide, providing physicists from around the globe with opportunities to collaborate in a twenty to thirty year program of exciting science. In this document we provide a comprehensive overview of LBNE's scientific objectives, its place in the landscape of neutrino physics worldwide, the technologies it will incorporate and the capabilities it will possess.Comment: Major update of previous version. This is the reference document for LBNE science program and current status. Chapters 1, 3, and 9 provide a comprehensive overview of LBNE's scientific objectives, its place in the landscape of neutrino physics worldwide, the technologies it will incorporate and the capabilities it will possess. 288 pages, 116 figure

Development of the PSYCHS: Positive SYmptoms and Diagnostic Criteria for the CAARMS Harmonized with the SIPS

Aim: To harmonize two ascertainment and severity rating instruments commonly used for the clinical high risk syndrome for psychosis (CHR-P): the Structured Interview for Psychosis-risk Syndromes (SIPS) and the Comprehensive Assessment of At-Risk Mental States (CAARMS). Methods: The initial workshop is described in the companion report from Addington et al. After the workshop, lead experts for each instrument continued harmonizing attenuated positive symptoms and criteria for psychosis and CHR-P through an intensive series of joint videoconferences. Results: Full harmonization was achieved for attenuated positive symptom ratings and psychosis criteria, and modest harmonization for CHR-P criteria. The semi-structured interview, named Positive SYmptoms and Diagnostic Criteria for the CAARMS Harmonized with the SIPS (PSYCHS), generates CHR-P criteria and severity scores for both CAARMS and SIPS. Conclusions: Using the PSYCHS for CHR-P ascertainment, conversion determination, and attenuated positive symptom severity rating will help in comparing findings across studies and in meta-analyses

Finishing the euchromatic sequence of the human genome

The sequence of the human genome encodes the genetic instructions for human physiology, as well as rich information about human evolution. In 2001, the International Human Genome Sequencing Consortium reported a draft sequence of the euchromatic portion of the human genome. Since then, the international collaboration has worked to convert this draft into a genome sequence with high accuracy and nearly complete coverage. Here, we report the result of this finishing process. The current genome sequence (Build 35) contains 2.85 billion nucleotides interrupted by only 341 gaps. It covers ∼99% of the euchromatic genome and is accurate to an error rate of ∼1 event per 100,000 bases. Many of the remaining euchromatic gaps are associated with segmental duplications and will require focused work with new methods. The near-complete sequence, the first for a vertebrate, greatly improves the precision of biological analyses of the human genome including studies of gene number, birth and death. Notably, the human enome seems to encode only 20,000-25,000 protein-coding genes. The genome sequence reported here should serve as a firm foundation for biomedical research in the decades ahead