Author Question: Kat wants to buy a dog whistle that her dog can hear but she can't. She should get a whistle that ... (Read 78 times)

anshika · **on:** Jun 19, 2018

Kat wants to buy a dog whistle that her dog can hear but she can't. She should get a whistle that emits sounds in the range between ____ and _____ Hz.

A) 100; 900
B) 1,000; 5,000
C) 15,000; 20,000
D) 30,000; 40,000

Question 2

The goal of the research of behavioral scientists is to

a. make old findings into new experiments.
b. learn about the relationships between and among conceptual variables.
c. determine whether common sense is correct or incorrect.
d. confirm findings of past research.