Yes. The free plan includes 5 practice tests per course. Full access is $19.99/mo per course.

What exams does Cognify cover?

Cognify covers AP Psychology, Digital SAT, AP Biology, and AP Statistics with practice tests, rubric-graded FRQs, and score prediction.

How does Cognify compare to Khan Academy?

Cognify focuses on exam-format practice with AI grading and score prediction. Khan Academy provides broad video instruction. Cognify is purpose-built for AP and SAT exam day performance.

How does Cognify compare to UWorld and Princeton Review?

UWorld and Princeton Review rely on static question banks that students exhaust after a few sessions. Cognify generates fresh questions on demand against the official College Board exam blueprint, so every practice test is unique. FRQs are graded point-by-point against AP rubrics with specific feedback on what you earned and missed.

How accurate is the AP score prediction?

Cognify maps your percentage correct to the public AP composite scoring buckets (1-5) using historical score distributions. The prediction improves as you take more practice tests. For the Digital SAT, scores map to the 400-1600 scale using official section score conversion tables.

Does Cognify cover AP FRQ practice?

Yes. Cognify provides rubric-graded FRQ practice for AP Psychology, AP Biology, and AP Statistics. Each response is scored criterion by criterion against the official AP rubric with specific written feedback explaining what you earned, what you missed, and how to improve.

Descriptive Research Methods

AP Psychology — Scientific Foundations

Overview

Case studies, surveys, naturalistic observation, and longitudinal/cross-sectional designs. Advantages and limitations of each method.

Key Terms

case study
survey
naturalistic observation
longitudinal study
cross-sectional study

Exam Tips

Know when each method is most appropriate
Identify limitations of each method in exam scenarios

Common Mistakes to Avoid

Thinking case studies can be generalized to the population
Confusing longitudinal and cross-sectional designs

Frequently Asked Questions

What is the advantage of naturalistic observation?

It captures behavior in real-world settings, providing high ecological validity. The limitation is that researchers cannot control confounding variables or establish causation.

Ready to practice Descriptive Research Methods?

AI-generated questions with instant feedback. Free to start.

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Descriptive Research Methods

AP Psychology — Scientific Foundations

Overview

Case studies, surveys, naturalistic observation, and longitudinal/cross-sectional designs. Advantages and limitations of each method.

Key Terms

case study
survey
naturalistic observation
longitudinal study
cross-sectional study

Exam Tips

Know when each method is most appropriate
Identify limitations of each method in exam scenarios

Common Mistakes to Avoid

Thinking case studies can be generalized to the population
Confusing longitudinal and cross-sectional designs

Frequently Asked Questions

What is the advantage of naturalistic observation?

It captures behavior in real-world settings, providing high ecological validity. The limitation is that researchers cannot control confounding variables or establish causation.

Ready to practice Descriptive Research Methods?

AI-generated questions with instant feedback. Free to start.

Start Practicing Free

Descriptive Research Methods

Overview

Key Terms

Exam Tips

Common Mistakes to Avoid

Frequently Asked Questions

Ready to practice Descriptive Research Methods?

Related Scientific Foundations Topics

Descriptive Research Methods

Overview

Key Terms

Exam Tips

Common Mistakes to Avoid

Frequently Asked Questions

Ready to practice Descriptive Research Methods?

Related Scientific Foundations Topics