Roberts, A., Poortinga, W.  ORCID: https://orcid.org/0000-0002-6926-8545 and Williams, M. O.
      2025.
      
      Climate anxiety in the United Kingdom: Associations with environmentally relevant behavioural intentions, and the moderating role of efficacy.
      Journal of Environmental Psychology
      105
      
      
      , 102595.
      10.1016/j.jenvp.2025.102595
    
  
  
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      Morey, Alex, Samuel, Victoria, Lewis, Matthew and Williams, Marc
      2025.
      
      Validation of the comprehensive assessment of acceptance and commitment therapy processes for youth: The CompACT‐Y.
      JCPP Advances
      5
      
        (2)
      
      
      , e12271.
      10.1002/jcv2.12271
    
  
    
    
       
    
  
  
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      Ramsay, Georgina, Williams, Marc, Marks, Elizabeth and Morgan, Gareth
      2025.
      
      A COSMIN systematic review of the psychometric properties of instruments that measure climate change-related distress.
      Cogent Mental Health
      4
      
        (1)
      
      , pp. 1-27.
      
      10.1080/28324765.2025.2449878
    
  
    
    
       
    
  
  
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      Williams, Marc O., Buekers, Joren, Castaño-Vinyals, Gemma, de Cid, Rafael, Delgado-Ortiz, Laura, Espinosa, Ana, Garcia-Aymerich, Judith, Koch, Sarah, Kogevinas, Manolis, Viola, Marco, Whitmarsh, Lorraine  ORCID: https://orcid.org/0000-0002-9054-1040 and Chevance, Guillaume
      2024.
      
      Climate anxiety and its association with health behaviours and generalized anxiety: An intensive longitudinal study.
      British Journal of Health Psychology
      29
      
        (4)
      
      , pp. 1080-1095.
      
      10.1111/bjhp.12746
    
  
    
    
       
    
  
  
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      Calabria, Luis, Peters, Charlotte and Williams, Marc
      2024.
      
      Compassion-focused approaches to understanding the mental health of climate scientists.
      The Cognitive Behaviour Therapist
      17
      
      
      , e34.
      10.1017/S1754470X23000223
    
  
    
    
       
    
  
  
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      Williams, Marc and Samuel, Victoria
      2024.
      
      Acceptance and commitment therapy as an approach for working with climate distress.
      The Cognitive Behaviour Therapist
      17
      
      
      , e35.
      10.1017/S1754470X23000247
    
  
    
    
       
    
  
  
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      Williams, Marc O., Samuel, Victoria M., Whitmarsh, Lorraine, Poortinga, Wouter  ORCID: https://orcid.org/0000-0002-6926-8545, Jenkins, Christine and Constable, Chloe
      2024.
      
      ‘There’s no helpline’: how mental health services can support young people with climate distress.
      Cogent Mental Health
      3
      
        (1)
      
      
      , 2409815.
      10.1080/28324765.2024.2409815
    
  
    
    
       
    
  
  
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      Morey, Alex, Samuel, Victoria and Williams, Marc
      2024.
      
      Universal online self-help ACT interventions for youth: A systematic review.
      Behaviour Research and Therapy
      180
      
      
      , 104576.
      10.1016/j.brat.2024.104576
    
  
    
    
       
    
  
  
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      Finch, Katie, Lawrence, Daniel, Williams, Marc O., Thompson, Andrew R.  ORCID: https://orcid.org/0000-0001-6788-7222 and Hartwright, Christopher
      2024.
      
      Relationships between adverse childhood experiences, attachment, resilience, psychological distress and trauma among forensic mental health populations.
      The Journal of Forensic Psychiatry & Psychology
      35
      
        (5)
      
      , pp. 660-684.
      
      10.1080/14789949.2024.2365149
    
  
    
    
       
    
  
  
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      Marffy, Mary-Jane, Fox, John  ORCID: https://orcid.org/0000-0003-3039-8024 and Williams, Marc
      2024.
      
      An exploration of the relationship between loneliness, the severity of eating disorder-related symptoms and the experience of the 'anorexic voice'.
      Psychology and Psychotherapy: Theory, Research and Practice
      97
      
        (1)
      
      , pp. 122-137.
      
      10.1111/papt.12502
    
  
  
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      Williams, Marc O.
      2023.
      
      Climate distress and social identity: Bringing theory to clinical practice.
      Frontiers in Psychology
      14
      
      
      , 1126922.
      10.3389/fpsyg.2023.1126922
    
  
    
    
       
    
  
  
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      Rea, Sara, Samuel, Victoria, Ferreira, Nuno and Williams, Marc
      2023.
      
      Role of psychological flexibility and self-compassion in people on home parenteral nutrition: psychological, line care adherence and infection outcomes.
      Mediterranean Journal of Clinical Psychology
      11
      
        (2)
      
      
      
      10.13129/2282-1619/mjcp-3696
    
  
    
       
    
    
  
  
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      Howard, Tina L. M., Williams, Marc O., Woodward, Debbie and Fox, John R. E.  ORCID: https://orcid.org/0000-0003-3039-8024
      2023.
      
      The relationship between shame, perfectionism and Anorexia Nervosa: a grounded theory study.
      Psychology and Psychotherapy: Theory, Research and Practice
      96
      
        (1)
      
      , pp. 40-55.
      
      10.1111/papt.12425
    
  
    
    
       
    
  
  
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      Field, Sarah L., Fox, John R. E.  ORCID: https://orcid.org/0000-0003-3039-8024, Jones, Catherine R. G.  ORCID: https://orcid.org/0000-0003-0541-0431 and Williams, Marc O.
      2023.
      
      “Work WITH us”: a Delphi study about improving eating disorder treatment for autistic women with anorexia nervosa.
      Journal of Eating Disorders
      11
      
        (1)
      
      
      , 17.
      10.1186/s40337-023-00740-z
    
  
    
    
       
    
  
  
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      Williams, Marc
      2023.
      A mixed-methods examination of nature beliefs as predictors of sustainable behaviour in the UK/Archwiliad dulliau cymysg o gredoau natur sy’n darogan ymddygiad cynaliadwy yn y DU.
      PhD Thesis,
      Cardiff University.
    
  
  
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      Morrison, Jet, Williams, Marc O. and Fox, John R. E.  ORCID: https://orcid.org/0000-0003-3039-8024
      2022.
      
      Negative childhood events and the development of the anorexic voice: A grounded theory.
      Psychology and Psychotherapy: Theory, Research and Practice
      95
      
        (4)
      
      , pp. 1018-1035.
      
      10.1111/papt.12416
    
  
    
    
       
    
  
  
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      Whitmarsh, Lorraine  ORCID: https://orcid.org/0000-0002-9054-1040, Player, Lois, Jiongco, Angelica, James, Melissa, Williams, Marc, Marks, Elizabeth and Kennedy-Williams, Patrick
      2022.
      
      Climate anxiety: What predicts it and how is it related to climate action?
      Journal of Environmental Psychology
      83
      
      
      , 101866.
      10.1016/j.jenvp.2022.101866
    
  
    
    
       
    
  
  
       
       
     
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      Finch, Katie, Lawrence, Daniel, Williams, Marc, Thompson, Andrew  ORCID: https://orcid.org/0000-0001-6788-7222 and Hartwright, Christopher
      2022.
      
      A systematic review of the effectiveness of safewards: Has enthusiasm exceeded evidence?
      Issues in Mental Health Nursing
      43
      
        (2)
      
      , pp. 119-136.
      
      10.1080/01612840.2021.1967533
    
  
  
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      Stott, Natalie, Williams, Marc and Fox, John  ORCID: https://orcid.org/0000-0003-3039-8024
      2021.
      
      Attentional bias in eating disorders: a meta-review.
      International Journal of Eating Disorders
      54
      
        (8)
      
      , pp. 1377-1399.
      
      10.1002/eat.23560
    
  
    
    
       
    
  
  
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      Williams, Marc O., Whitmarsh, Lorraine, Haddock, Geoffrey  ORCID: https://orcid.org/0000-0001-5293-2772 and Mac Giolla Chríost, Diarmait
      2021.
      
      A grounded theory of pro-nature behaviour: from moral concern to sustained action.
      Sustainability
      13
      
        (16)
      
      
      , 8944.
      10.3390/su13168944
    
  
    
    
       
    
  
  
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| Williams, Marc, Whitmarsh, Lorraine and Chríost, Diarmait Mac Giolla 2021. The association between anthropomorphism of nature and pro-environmental variables: a systematic review. Biological Conservation 255 , 109022. 10.1016/j.biocon.2021.109022 | 
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| Williams, Marc 2020. The relationship between climate change and mental health information-seeking: a preliminary investigation. Journal of Public Mental Health 20 , pp. 69-78. 10.1108/JPMH-04-2020-0025 | 
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| Williams, Marc O., Tsivos, Zoe, Brown, Sarah, Whitelock, Nicola S. and Sampson, Magdalene 2017. Compassion-focused therapy for bulimia nervosa and bulimic presentations: a preliminary case series. Behaviour Change 34 (3) , pp. 199-207. 10.1017/bec.2017.13 | 
        
  
  
       
    
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      Williams, Marc, Mathews, Andrew and Hirsch, Colette R.
      2014.
      
      Verbal worry facilitates attention to threat in high-worriers.
      Journal of Behavior Therapy and Experimental Psychiatry
      45
      
        (1)
      
      , pp. 8-14.
      
      10.1016/j.jbtep.2013.05.006
    
  
    
    
       
    
  
  
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