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  1. Article

    Open Access

    Cognitive behavioural therapy for social anxiety disorder in people with bipolar disorder: a case series

    Social anxiety disorder increases the likelihood of unfavourable outcomes in people with bipolar disorder. Cognitive behavioural therapy (CBT) is the first-line treatment for social anxiety disorder. However, ...

    Barbara Pavlova, Emma Warnock-Parkes in International Journal of Bipolar Disorders (2024)

  2. No Access

    Reference Work Entry In depth

    Fortnite: A Brief History

    David M. Clark, Newton Lee in Encyclopedia of Computer Graphics and Games (2024)

  3. No Access

    Chapter

    Foundational Principles

    This chapter begins our full axiomatic development of the part of plane Euclidean geometry that has traditionally been taught in high school.

    David M. Clark, Samrat Pathania in A Full Axiomatic Development of High School Geometry (2023)

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    Chapter

    Similar Figures

    Fix any point 𝑂. If 𝑥 is a positive number, we would like to define the dilation with center 𝑂 and scaling factor 𝑥 to be the function taking 𝑂 to itself

    David M. Clark, Samrat Pathania in A Full Axiomatic Development of High School Geometry (2023)

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    Chapter

    Angle Measure

    Like area measure, angle measure is a construct that can either be primitive or defined.

    David M. Clark, Samrat Pathania in A Full Axiomatic Development of High School Geometry (2023)

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    Chapter

    Circle Measure

    In this chapter we will prove that there is a real number 𝜋 such that, for every circle C with radius 𝑟, the circumference 𝑐

    David M. Clark, Samrat Pathania in A Full Axiomatic Development of High School Geometry (2023)

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    Chapter

    Neutral Geometry

    Two lines are parallel if they have no point in common.

    David M. Clark, Samrat Pathania in A Full Axiomatic Development of High School Geometry (2023)

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    Chapter

    Area Measure

    An area measure function A can be introduced either as another primitive construct or as a defined construct.

    David M. Clark, Samrat Pathania in A Full Axiomatic Development of High School Geometry (2023)

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    Chapter

    Trigonometry

    We say that an angle is acute if it is less than a right angle. This chapter is about that part of trigonometry that intersects high school geometry: the trigonometric functions of acute angles.

    David M. Clark, Samrat Pathania in A Full Axiomatic Development of High School Geometry (2023)

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    Living Reference Work Entry In depth

    Fortnite: A Brief History

    David M. Clark, Newton Lee in Encyclopedia of Computer Graphics and Games

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    Chapter

    Consistency and Models

    Chapter 7 concludes the investigation we laid out in the introduction to Chapter 1.

    David M. Clark, Samrat Pathania in A Full Axiomatic Development of High School Geometry (2023)

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    Book

  13. Article

    Open Access

    Characterising Negative Mental Imagery in Adolescent Social Anxiety

    Understanding the role of self-imagery in the development of social anxiety in adolescence holds promise for improving intervention. Cross-sectional studies indicate that imagery characteristics are associated...

    Kenny Chiu, David M. Clark, Eleanor Leigh in Cognitive Therapy and Research (2022)

  14. Article

    Open Access

    Development and Preliminary Validation of the Child & Adolescent Social Cognitions Questionnaire

    Negative cognitions play a central role in adolescent social anxiety, and yet there is a lack of empirically validated measures assessing these in detail. This study describes the adaptation of the Child & Ado...

    Eleanor Leigh, David M. Clark in Child Psychiatry & Human Development (2022)

  15. Article

    Open Access

    Interpretation Bias in Online and Offline Social Environments and Associations with Social Anxiety, Peer Victimization, and Avoidance Behavior

    In face-to-face (offline) social situations a tendency, or bias, to negatively interpret ambiguous situations is consistently related to social anxiety. Although social interactions increasingly occur over the...

    Anne C. Miers, Sindy R. Sumter, David M. Clark in Cognitive Therapy and Research (2020)

  16. Article

    Open Access

    A randomised controlled trial of therapist-assisted online psychological therapies for posttraumatic stress disorder (STOP-PTSD): trial protocol

    Over the last few decades, effective psychological treatments for posttraumatic stress disorder (PTSD) have been developed, but many patients are currently unable to access these treatments. There is initial evid...

    Anke Ehlers, Jennifer Wild, Emma Warnock-Parkes, Nick Grey, Hannah Murray in Trials (2020)

  17. Article

    Open Access

    Evaluating CBT Clinical Competence with Standardised Role Plays and Patient Therapy Sessions

    Standardised role-plays (SR) have been proposed as an alternative to recordings of patients’ therapy sessions (PTS) to assess therapist competence during CBT training. This study compared the following propert...

    Sheena Liness, Sarah Beale, Susan Lea, Suzanne Byrne in Cognitive Therapy and Research (2019)

  18. Article

    Open Access

    Online Social anxiety Cognitive therapy for Adolescents (OSCA): protocol for a randomised controlled trial

    Adolescent social anxiety disorder (SAD) is common, impairing and persistent. There is a need to intervene early to avert its long-term consequences. Cognitive Therapy for SAD is the leading treatment for adul...

    Eleanor Leigh, David M. Clark in Trials (2019)

  19. Article

    Open Access

    The Sustained Effects of CBT Training on Therapist Competence and Patient Outcomes

    The continued effectiveness of in-service psychological therapy training requires evaluation. This study assessed therapist competence and patient clinical outcome during cognitive behaviour therapy training a...

    Sheena Liness, Sarah Beale, Susan Lea, Suzanne Byrne in Cognitive Therapy and Research (2019)

  20. Article

    Open Access

    Understanding Social Anxiety Disorder in Adolescents and Improving Treatment Outcomes: Applying the Cognitive Model of Clark and Wells (1995)

    Social anxiety disorder is a condition characterised by a marked and persistent fear of being humiliated or scrutinised by others. Age-of-onset data point to adolescence as a developmentally sensitive period f...

    Eleanor Leigh, David M. Clark in Clinical Child and Family Psychology Review (2018)

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