To be successful on CAS exams, candidates must retain material over months, retrieve it accurately under time pressure, and apply it flexibly to unfamiliar problems. Decades of cognitive psychology research offer clear guidance on how to study for these demands. In my former life as a teacher and during my own studying, I have found two sources particularly useful: the research synthesized by the Learning Scientists and the applied work of Saundra McGuire in Teach Students How to Learn. Both recommend a small number of strategies that reliably improve learning outcomes.

The Learning Scientists identify six evidence‑based study strategies, ranked by strength of empirical support: spaced practice, retrieval practice, elaboration, interleaving, concrete examples, and dual coding. All six have empirical backing, but the weight and consistency of the evidence differ. Spaced practice and retrieval practice stand out as the most robust and consistently supported strategies for improving long‑term retention. For actuarial candidates, these two should form the foundation of a study plan.

Spaced practice refers to distributing study over time rather than concentrating it into long sessions. Research shows that the same total number of study hours produces much better retention when those hours are spread out. Forgetting some knowledge between sessions is not a problem; it is a feature. When material is revisited after a delay, the brain must reconstruct it, which strengthens memory and improves durability.

Spaced practice should form the basis of an exam study plan. Effective spacing means starting preparation early, scheduling shorter study sessions evenly throughout the week, revisiting older topics deliberately, and resisting the temptation to abandon earlier material once it feels “done.” A typical week should include time to study new content as well as time for targeted review of material from prior weeks and months.

Retrieval practice is the second pillar of effective studying. It involves actively bringing information to mind without looking at notes, formulas, or solutions, followed by checking for accuracy. Practice problems, closed‑book quizzes, flashcards used for recall rather than recognition, and writing out explanations from memory are all forms of retrieval practice.

The key point is that retrieval itself strengthens memory. Rereading notes or watching solution videos may feel productive, but they primarily build familiarity, not recall. Actuarial exams reward recall and application under constraint. Candidates should therefore attempt problems without notes first, write formulas from memory before checking a sheet, and routinely test themselves on definitions, assumptions, and interpretations. Difficulty during retrieval is not a sign of inefficiency; it is evidence that learning is occurring.

Elaboration sits below spacing and retrieval in the evidence hierarchy but remains highly relevant for actuarial exams. Elaboration means explaining ideas in your own words, asking why a method works, when it applies, and how it connects to related concepts. It moves learning beyond memorization toward understanding.

In actuarial study, elaboration is especially important for conceptual questions and written responses. Explaining why a particular distributional assumption is appropriate, comparing reserving methods, or articulating the limitations of a model all require elaborative understanding.

Interleaving involves mixing related topics or problem types within a study session instead of practicing one type repeatedly in isolation. While blocked practice can inflate short‑term performance, interleaving improves the ability to choose the correct method when problems are not labeled. Interleaving often feels harder and can temporarily lower accuracy, but it improves performance on cumulative exams.

For actuarial candidates, the practical implication is straightforward. A study plan built around early start dates, repeated spaced review, frequent retrieval, deliberate explanation, and mixed practice is far more likely to produce exam‑day readiness than one centered on rereading manuals or watching solutions. The strategies are not novel, but the evidence behind them is strong and consistent.

Further detail, examples, and student‑focused guidance can be found at learningscientists.org (including detail on concrete examples and dual coding) and in Saundra McGuire’s Teach Students How to Learn. Both sources reinforce the same conclusion: changing how you study matters more than increasing how long you study, especially for high‑stakes, cumulative exams like those of the CAS.

An example study plan

One way to operationalize these strategies is to commit to a long, steady preparation window rather than an intense final push. A representative approach is to begin roughly four months before the exam and study about four hours per day, split into shorter sessions—for example, one hour before work, one before lunch, one after lunch, and one hour after work. This structure naturally supports spacing and reduces fatigue.

During the first one to two months, the primary goal is broad coverage with retention. Source material, study manuals, and videos should be broken into manageable segments and completed evenly across this period. Flashcards and practice problems should begin almost immediately rather than being postponed until the syllabus is complete. Using a digital flashcard system, such as Anki, or the spaced‑repetition tools included with many actuarial prep platforms helps automate spaced practice and retrieval practice and ensures older material continues to resurface.

Practice problems should not be worked in large, topic‑specific batches. Once a topic has been studied, its problems should be mixed with problems from earlier material. This approach supports both retrieval practice and interleaving, forcing continual recall and method selection and more closely matching the cognitive demands of exam day.