Benjamin Bloom led a group of educational psychologists who developed a classification of levels of intellectual behaviour that are important in learning.
Bloom identified six levels within the cognitive domain, ranging from the lowest level, simple recall, through to increasingly more complex and abstract mental levels, to the highest order which is classified as evaluation.
Evaluation
Assess, decide, rank, grade, test, measure, recommend, convince, select, judge, explain, discriminate, support, conclude, compare, summarize
Synthesis
Combine, integrate, modify, rearrange, substitute, plan, create, design, invent, what if?, compose, formulate, prepare, generalize, rewrite
Analysis
Analyze, separate, order, explain, connect, classify, arrange, divide, compare, select, explain, infer Application Apply, demonstrate, calculate, complete, illustrate, show, solve, examine, modify, relate, change, classify, experiment, discover
Comprehension
Summarize, describe, interpret, contrast, predict, associate, distinguish, estimate, differentiate, discuss, extend
Knowledge
List, define, tell, describe, identify, show, label, collect, examine, tabulate, quote, name, who, when, where, etc.