The "Critical Scan" Strategy for Unseen Texts

Use these four lenses as a checklist every time you read a new study summary.

Scan for the Sample (Bias)

Look immediately at who participated. Is it a WEIRD sample (Western, Educated, Industrialized, Rich, Democratic)? Are there gender imbalances (like the all-male sample in the specimen)? Ask if the study uses an etic (universal) approach when an emic (culture-specific) one is needed.

Scan for the Design (Causality)

Identify the Independent Variable (IV) and Dependent Variable (DV). Is it a true experiment or just a correlation? Look for confounding variables — individual differences like personality or intelligence — that could threaten internal validity.

Scan for the Tools (Measurement)

Critique the operationalization. Ask: "Is the specific behavior they are counting (e.g., 'detail of conversation') a truly accurate representative of the abstract concept (e.g., 'attraction')?" Check if the measurement is subjective (self-reporting) or objective (blinded observation).

Scan for the Procedure (Responsibility)

Identify any deception used. Perform a cost-benefit analysis: Does the scientific gain outweigh the potential for undue stress or embarrassment? Always look for the presence or necessity of a rigorous debriefing.

Strategic Writing Template

You can use this general structure for any study provided.

1. Introduction: Briefly define the two or more concepts you will use and state your overall judgment of the study's quality.

2. Thematic Paragraph 1 (Concept A): Identify a specific detail from the text (e.g., the "fake IQ test") and evaluate it using the self-questioning toolkit (e.g., "Was this a form of undue stress?").

3. Thematic Paragraph 2 (Concept B): Identify another detail (e.g., "only men were used") and evaluate it (e.g., "this creates gender bias").

4. Integrated Analysis: Explicitly link the two concepts using high-level linking phrases (e.g., "This measurement issue further compromises the causality because…").

5. Reasoned Conclusion: Summarize the strengths and limitations to provide a final, consistent judgment.

Pro Tip: The IB accepts both depth (focusing deeply on two concepts) and breadth (covering more than two). The key is the accuracy and precision of the psychological terminology used in the discussion.