Q value

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Q value, Q factor, and Q score may refer to:

  • Q factor, a measurement of a resonant system's relative bandwidth
  • Q factor (bicycles), the width between where a bicycle's pedals attach to the cranks
  • Q value (nuclear science), a difference of energies of parent and daughter nuclides
  • Q Score, in marketing, a way to measure the familiarity of an item
  • Fusion energy gain factor Q, the ratio of fusion power produced in a reactor to the power required to maintain the plasma in steady state
  • q-value in statistics, the minimum false discovery rate at which the test may be called significant
  • Q (number format), in number theory, a way of representing decimal numbers in a fixed-point math system
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