MS Cheat Sheet 2026

The 30 highest-yield MS facts, distilled from real exam questions. Print it, save it as a PDF, or study it here — free, no sign-up.

1. Which of the following statistical and analytical methods are frequently employed by data scientists? → All of the above
2. In a BJT transistor operating in the active region, what is the relationship between collector current (Ic) and base current (Ib)? → Ic = β × Ib
3. What is Bloom's Taxonomy primarily used for in educational settings? → Classifying learning objectives into hierarchical cognitive levels
4. Which Erikson stage involves the conflict between 'intimacy vs. isolation' and occurs during early adulthood? → Stage 6 (Young Adulthood)
5. Which theorem states that the current through a resistor in a linear circuit equals the sum of currents from each independent source acting alone? → Superposition Theorem
6. What does 'reliability' mean in the context of psychological measurement? → Consistency of a measure across repeated administrations
7. What is the zone of proximal development (ZPD) concept, introduced by Vygotsky? → The difference between what a learner can do independently and with guidance
8. Which type of semiconductor device is primarily used as a voltage-controlled current source in amplifier circuits? → MOSFET
9. In the context of A/B testing, what does statistical power represent? → The probability of correctly detecting a true effect
10. What is the primary source of stratospheric ozone depletion? → Chlorofluorocarbons (CFCs)
11. Which greenhouse gas has the highest global warming potential (GWP) over a 100-year timeframe per unit mass among common atmospheric pollutants? → Sulfur hexafluoride (SF₆)
12. What is the purpose of a heat exchanger's NTU (Number of Transfer Units) method? → Designing heat exchangers when the outlet temperatures are unknown
13. What term describes the maximum population size an environment can sustainably support? → Carrying capacity
14. What is the CDC's CASPER (Community Assessment for Public Health Emergency Response) tool designed for? → Rapid assessment of health and social needs in communities following disasters
15. In formal language theory, which class of languages is recognized by a pushdown automaton (PDA)? → Context-free languages
16. For at least the following __ years, a library building should be planned. → 20
17. What does Universal Design for Learning (UDL) aim to accomplish? → Proactively design flexible instruction that is accessible to all learners from the outset
18. Which concept describes the rate of return at which the net present value of a project's cash flows equals zero? → Internal Rate of Return (IRR)
19. Which serials-specific term describes the phenomenon of a journal changing its title over its publication history? → Successive entry
20. What is the purpose of an Institutional Review Board (IRB) in public health research? → Protect the rights and welfare of human research participants
21. What is the main characteristic of a longitudinal research design in developmental psychology? → The same participants are followed and measured repeatedly over an extended period of time
22. Which data structure supports O(1) average-case insertion, deletion, and lookup? → Hash table
23. Which thermodynamic potential is minimized at constant temperature and pressure at equilibrium? → Gibbs free energy (G)
24. The year that the Delivery of Book Act was passed → 1954
25. Which cryptographic primitive provides both data integrity and authentication using a shared secret key? → HMAC
26. Beer-Lambert Law (A = εbc) relates absorbance to concentration. If you double the path length (b) while halving the concentration (c), absorbance will: → Remain the same
27. What does constructivist learning theory, associated with Piaget, emphasize? → Learners actively construct knowledge through experience and reflection
28. What is the purpose of a confusion matrix in classification models? → To evaluate model performance by showing true vs. predicted class counts
29. There are descriptors and non-descriptors in the thesaurus. → True
30. Which air pollutant is measured by the US EPA as PM2.5? → Fine particulate matter with diameter ≤ 2.5 micrometers