Discussion Board
Participate in this Discussion Forum: IQ and Age: Can Graphing Help Us See What’s Happening in Psychology?
Details:
Students typically quality for special education services if their IQ is less than 50. There is a formula for IQ that relates mental age to actual age: y = (x / a) * 100, where y = IQ, x = mental age, and a = actual age. For this assignment, you will be using a graphing calculator at https://www.desmos.com/calculatorLinks to an external site.. For help using the desmos calculator and sharing what you graph, go to: https://www.youtube.com/watch?v=fIDlBDkM-hA
Begin this discussion by:
Choose the actual age of a child between ages 2 and 18—please select an age not already chosen by your classmates if possible).
Go to the Desmos graphing calculator website (https://www.desmos.com/calculatorLinks to an external site.) and enter for the 1st equation y = (x / a) * 100, replacing the actual age, a, with what you chose above. For help using the desmos calculator and sharing what you graph, there is help at: https://www.youtube.com/watch?v=fIDlBDkM-hA
Next, enter for the 2nd equation y < 50 to show corresponding mental ages for IQ’s < 50.
Zoom out on your graph so you can see up and down to y = 150 and y = -150 and share your graph in discussion along with the following:
Identify one score where both equations are valid together (inside the intersection) and identify one score where both equations are invalid together (outside the intersection) and state this below the graph you shared.
What is the corresponding mental age (x) when IQ (y) is 50? When IQ (y) is 150? (Feel free to zoom as needed to be as accurate as possible).
