It's not a binary option. One poor experiment might give us some evidence something is true. A single well reviewed experiment gives us more confidence. Repeating the results similarly does. As does the reputation of the person conducting the experiment and the way in which it was conducted.
It's not a binary thing where we decide something is accepted or rejected, we gather evidence and treat it accordingly.
It's not a binary option. One poor experiment might give us some evidence something is true. A single well reviewed experiment gives us more confidence. Repeating the results similarly does. As does the reputation of the person conducting the experiment and the way in which it was conducted.
It's not a binary thing where we decide something is accepted or rejected, we gather evidence and treat it accordingly.