This material is the for the “old syllabus.” Students in the new IB Psychology syllabus (first exams May, 2019), do not need to know about narrative interviews (but they do need to know about unstructured interviews). What is a narrative interview? A “narrative” is a spoken or written summary of connected events. So a narrative interview asks questions that require …
Lesson Idea: Generalizability (External Validity)
The Task Read the following fictional summaries of how people have applied results from psychological studies. Identify one or more reasons why the application is misguided and might not work. #1 Social Media and Anxiety: One study in the USA showed a correlation between social media and anxiety so a school in Japan has banned the use of social media. #2 Music Class …
Lesson Idea: Understanding Sampling Methods
Task: Read the following summaries of studies and how they got their samples. Identify the type of sampling method used. Was it: (a) Random (b) Self-selected/volunteer (c) Opportunity Mental Health and War: A psychologist studying the effects of war on mental health got a list of all enlisted soldiers in the countries army using public census records. They assigned a number to …
Lesson Idea: Understanding Self-selected Sampling
This activity and lots of others are included in the student workbook in the Teacher Support Pack for Chapter 6: Quantitative Methods. Read the aims of the following proposed experiments. Some researchers want to carry out these studies but their problem is they don’t have any participants yet. Working with a partner, come up with some ideas on how they …
Lesson Idea: Understanding correlational studies
The purpose of this activity is to help you learn about correlational studies and correlation coefficients. Key Questions: What are three characteristics of a correlational study? How do correlational studies differ from experiments? How and why are correlational studies used in one or more approaches to understanding behaviour? Resources Textbook 6.1f, pg 320-321 (IB Psychology: A Student’s Guide) (Link) Correlation …
Lesson Idea: Experimental Designs
The purpose of this activity is to help you learn about design choices experimenters have and to think about the benefits and limitations of using each design. You will also learn about terminology for extraneous variables and other controls. It is designed to be studied during the Quantitative Methods unit (Chapter 6, 6.1b). It should take about 15-20 minutes. Key …
Clinical Drug Trials, PTSD and SSRIs
This post is designed to be used in lesson 4.6 in the PTSD unit plan. In order to evaluate the effectiveness of drug therapy using selective serotonin reuptake inhibitors (SSRIs) to treat PTSD, we need to consult the research. The most common way the effectiveness of drugs are tested is through a carefully controlled experiments. These experiments are also known …
Lesson Idea: Psychology in Popular Media
This would be a particularly good TOK lesson. Activity One: Watch a TED Talk Watch this TED Talk by Molly Crockett, one of the researchers in the Passamonti et al.’s experiment on trytophan depletion and its effects on the prefrontal cortex. In this talk she explains why we should be wary of “neurobunk.” [youtube https://www.youtube.com/watch?v=b64qvG2Jgro&w=560&h=315] After the video, discuss what …
What is an “experiment?”
If you’re reading this it’s probably because your teacher has assigned this as homework because you’ve called a study an “experiment” when it wasn’t an experiment at all. So this post is to help you know exactly when to use the term “experiment”, and when it’s safe just to say “study.” But before we get to that, let’s first clarify …
What makes an experiment “quasi?”
One key characteristic of a quasi-experiment is that one or more conditions of a true experiment cannot be met. This often includes the fact that there is no random allocation to the treatment or control conditions in the experiment. So if there is no random allocation, but there is still an IV hypothesized to have an effect on a DV, the …