Front

a call to take part in a contest or competition

Back

challenge

Front

an inclination or prejudice for or against someone or something

Back

bias

Front

making an inference based on an observation of a sample

Back

induction

Front

something toward which effort is extended

Back

objective

Front

a conversation or debate about a certain topic

Back

discussion

Front

a change made to improve something

Back

modification

Front

the act of reinforcing or strengthening something

Back

reinforcement

Front

the final section of a literary work that summarizes the main points

Back

epilogue

Front

the process of examining something in detail to understand it better

Back

analysis

Front

the act of participating in an event or activity

Back

participation