Q value for a high pass filter
You can look at these set of notes provided by Analog Devices as part of their "Basic Linear Design" seminar, or just look for notes on second order filters.

The transfer function of a second order high pass filter is 
$$H(s) = \frac{A s^2}{s^2+\frac{w_0}{Q}s+w_0^2}$$ where $w_0$ is the cutoff frequency, $Q$ is the $Q$-factor, and $A$ is the gain.