This quiz focuses on diminishing‑return functions such as negative exponential and S‑curves. You’ll judge parameters, optimisation points, and seasonal adjustments.
Saturation curves capture ______ returns as spend increases.
random
increasing
diminishing
linear
A common functional form is the ______ curve: ( y = a · (1 – e^{-b·x}) ).
negative exponential
log‑log
linear
quadratic
Parameter 'a' in that curve represents the ______ ceiling.
investment lag
asymptotic maximum response
decay rate
elasticity pivot
Parameter 'b' controls the rate of ______ toward saturation.
decline
cost
noise
growth
If ROI is still >1 at planned spend, the response curve suggests additional budget may still be ______.
flat
negative
inefficient
efficient
An **S‑curve (Hill function)** better fits channels with ______ phase before diminishing returns.
negative
instant
accelerating
stagnant
To optimise, MMM in 2025 toolkits calculate the spend where marginal ROI equals ______.
average ROI
CPC
target CPA or ROAS threshold
CPM
Shift plotting spend to log‑scale linearises the ______ portion of many saturation curves.
early rising
noise
flat tail
mid‑region
Channel saturation can also be diagnosed by plotting ______ versus incremental conversions.
creative length
viewability
cumulative spend
reach frequency
Using separate curves for peak and off‑peak seasons accounts for ______ shifts in responsiveness.
cookie
device
pixel
contextual
Starter
Review the basics.
Solid
Nice work—refine the details.
Expert!
Exceptional command of the topic.
Preparing for Saturation Curves Interview Questions means grasping how extra media spend eventually hits a point of diminishing returns. First, dive into this set of Attribution and Marketing Mix Modelling Interview Questions to see how channel weights affect saturation. Next, challenge yourself with the incrementality versus ROI practice MCQs to learn how lift translates into profit. Then explore the geo lift testing guide for hands-on experiment examples. Finally, wrap up your study by reviewing the synthetic control basics interview resource and sharpen your modeling techniques.
