IBDP Psychology Chapter 5 Notes

abnormal psychology


These notes have specially been curated by expert teachers to simplify and enlighten concepts given in IB Psychology HL. The notes are comprehensive in nature and are sufficient to study the chapter in depth and one need not look for other resources beyond the notes provided on our website which can be accessed for free. The notes for Abnormal Psychology IBDP HL are available on our official website and can be downloaded for free. You are one click away from obtaining all that you need to score well in IB Psychology HL.

The material made available on Tychr’s website is available for all IBDP subjects and is specially curated after an extensive amount of effort to ensure that the notes are in consonance with the IB curriculum and are an amalgamation from various textbooks prescribed by the IBO. Students often face a challenge understanding concepts, especially concepts that are new and tricky, these IB Psychology Notes will help the student cover the chapter of Abnormal Psychology entirely while explaining every concept in a detailed and easy away. 

In this chapter of Abnormal Psychology, we understand what abnormality is and come across various thinkers who define abnormality. While Rosenhan and Seligman define Abnormality as inadequate functioning, Jahoda defines abnormality as a deviation from ideal mental health. Alternatively, we also study the medical model of abnormality which defines disorders based on symptoms and seeks to find recognisable patterns of behaviour in every disorder. We then move into the various classification systems such as DSM-1, DSM-II, ICD-10, CCMD-3.

Next, we understand depression and the various explanations for depression such as Biological (gene environment interaction, role of neurotransmitters, Cognitive (Aaron Beck’s theory) and Sociocultural (Brown and Harris) explanations. We also discuss the treatment of depression through Antidepressants, Cognitive Behavioural Therapy (CBT) and its various techniques, i.e., Soratic Questioning, Behavioural experiments etc. This chapter also talks about Obsessive Compulsive Disorder (OCD) as an anxiety related mental disorder as well as the biological and psychological explanations of OCD.