Histograms & Frequency Polygons

In this video I explain the difference between histograms and bar charts, look at the creation of histograms and frequency polygons for continuous variables, and then discuss why we want to get a sense of the shape of a distribution … Read More

Social Psychology Practice Questions

This video covers 10 practice multiple choice questions on social psychology and includes questions related to conformity, cultural dimensions, persuasion, attribution theory, and more. I hope this can help you to review your knowledge and understanding, let me know if … Read More

Developmental Psychology Practice Questions

This video covers 10 practice multiple choice questions on developmental psychology and includes questions related to Piaget’s theory of cognitive development, parenting styles, attachment, and more. I hope this can help you to review your knowledge and understanding, let me … Read More

Emotion & Motivation Practice Questions

This video covers 10 practice multiple choice questions on emotion & motivation and includes theories of emotion, drives, hunger, motivational conflicts, and more. I hope this can help you to review your knowledge and understanding, let me know if you … Read More

Personality Psychology Practice Questions

This video covers 10 practice multiple choice questions on personality psychology and includes psychoanalytic and psychodynamic approaches, trait-based theories, projective techniques, and more. I hope this can help you to review your knowledge and understanding, let me know if you … Read More

Intelligence & Testing Practice Questions

This video covers 10 practice multiple choice questions on intelligence and testing and includes theories of intelligence, key figures in the study of intelligence, types of validity and reliability, and more. I hope this can help you to review your … Read More

States of Consciousness Practice Questions

This video covers 10 multiple choice practice questions on states of consciousness and includes concepts related to sleep, classifications of drugs, attention, dreaming, and more. I hope this can help you to review your knowledge and understanding, let me know … Read More

Language & Cognition Practice Questions

This video covers 10 multiple choice practice questions on language & cognition and includes concepts related to linguistics, language acquisition, problem-solving, decision-making, heuristics, and more. I hope this can help you to review your knowledge and understanding, let me know … Read More

How to Interpret (and Create) Frequency Distribution Tables

In this video I explain frequency distribution tables and grouped frequency distribution tables for summarizing data. I explain each of the columns, including the variable measured, the frequency, the proportion and percentage of the data at each variable, and the … Read More

n-1 Explained Conceptually

In this video I answer the common question of why we divide by n-1 when calculating variance from a sample, known as Bessel’s Correction. I focus on conceptual understanding of why this adjustment is needed and why n-1 is the … Read More