Final answer:
In 3/8, 6/8, or 9/8 time signatures, a dotted quarter note gets 1.5 beats as the eighth note is the beat unit, and the dot adds half the duration of the original note.
Step-by-step explanation:
In the context of music and time signatures, a dotted quarter note in time signatures such as 3/8, 6/8, or 9/8 typically receives 1.5 beats. This is because in these time signatures, the eighth note (quaver) is the beat unit, and a quarter note (crotchet) is equal to two eighth notes.
When a dot is added to a note, it increases the duration of that note by half its original value. Therefore, a dotted quarter note is the same as a quarter note plus an eighth note, which adds up to 1.5 beats.