PSYC 12d 217 trivia review

Team Formation

  • Suggestion to form teams for class discussion and activities.

    • Groups do not need to align with existing research groups.

    • Emphasis on having fun and engaging with classmates to ask and discuss ideas.

  • Instructor will post slides after the lecture, but students will not see questions or answers in advance.

Structure of Questions

  • Three rounds of questions to be presented, increasing in difficulty, focusing on material from earlier in the course.

Psychological Research Goals

  • Four Goals of Psychological Research:

    • 1. Finding Causes

    • 2. Describing Behavior

    • 3. Predicting Behavior

    • 4. Explaining Behavior

Describing Behavior

  • Focus on understanding one variable at a time without manipulating it.

  • Aim is to understand the context of the variable rather than making predictions.

Predicting Behavior

  • Involves making predictions about one variable based on another.

Finding Causes

  • Includes manipulation of one variable (Independent Variable, IV) and observing its effect on another (Dependent Variable, DV).

  • Key element of establishing causality in research.

  • Needs to manipulate to see if causes lead to changes in the dependent variable.

Mediation & Explanation

  • Meaning of Mediation:

    • When investigating the path from an independent variable to changes in a dependent variable, considering intermediate variables (mediators).

    • Explaining behavior primarily revolves around identifying what mechanisms led to observed changes.

Importance of Skepticism

  • Why skepticism matters in scientific research:

    • Skepticism engages researchers to critically evaluate ideas and methodologies.

    • It allows for questioning the validity of findings and exploring alternative explanations.

Encountering Skepticism

  • Sources of skepticism include:

    • Peer review process.

    • Rival studies with contradicting findings.

    • Poster presentations where critiques should be taken seriously.

Hypothesis vs. Prediction

  • Hypothesis:

    • Broad conceptual statement about expected relationships between variables.

    • Uses conceptual variables without specifying measures.

  • Prediction:

    • Specifies operational definitions, detailing specific outcomes.

    • The move from hypothesis to prediction involves operationalization of variables.

Ethical Principles in Psychology

  • Respect for Persons: Informed Consent

    • Example: Andrew observing conspiracy-oriented social media groups without members' knowledge.

    • Informed consent is crucial, but context matters (e.g., public vs. private groups).

  • Justice Principle:

    • Illustrated by the Tuskegee Syphilis Study.

    • Explains ethical concerns regarding the demographic of participants and distribution of risks/benefits in research.

Cognitive Reflection Exercise

  • Cognitive reflection task as a mental exercise:

    • If a lily pad doubles in size daily and takes 48 days to cover a lake, it takes 47 days to cover half.

Participant Awareness during Research

  • Common behavior changes that might occur when participants suspect awareness of a hypothesis:

    • Demand Characteristics: Participants modify behavior to fit perceived expectations.

    • Reactance: Participants rebel against perceived manipulation.

Data Interpretation and Study Design

  • Between Subjects Design: Using random assignment to conditions for experimental validity.

  • Addressing issues with control group differences through methods like re-randomization or matching.

Limitations of Study Design

  • Floor Effect Example:

    • Low heroin use reported in a sample limits examining correlations with personality traits.

    • Need for a sample that adequately represents the behavior being studied.

Meta-Analysis vs. Literature Review

  • Meta-Analysis:

    • Statistical analysis amalgamating multiple studies to ascertain average effect sizes.

    • Aimed at answering specific research questions (e.g., relationship between diabetes and exercise).

  • Literature Review:

    • Qualitative summary of existing research on a broad topic, not necessarily aiming to answer specific questions.

External Validity Concerns

  • The potential for problems with external validity due to sample characteristics or research environment.

Standardized vs. Unstandardized Effect Size

  • Standardized Effect Size (Cohen's d):

    • Allows for comparison across different studies, measuring strength of relationships independent of scale.

Open Science Framework Study Results

  • Discussed implications of replicating studies and skepticism in research.

  • Significant takeaways include:

    • Validity of p-values and their manipulation.

    • The importance of sharing research methods for replication studies.

Application of Research Methods Knowledge

  • Using skepticism in daily information consumption and distinguishing quality of scientific claims.

  • Understanding and deciphering non-fiction/ self-help literature critically.

  • Building confidence to question authority in research findings.

Conclusion & Future Engagement

  • Instructor offers future support for academic growth and discussions about research or career paths post-class.

  • Promoting ongoing contact with students beyond the course.

Presentation Guidelines

  • No strict dress code for presentations, but some may choose to dress up for the occasion.