Scorebuilders Q&A

Episode 44 – Normal Distribution

Scorebuilders

An eight-month-old child with suspected gross motor delay has a z-score of -1.0 on a norm-referenced test of gross motor ability with a normal distribution. Based on the presented data, what approximate percentage of the sample did the child score better than?

1. 16%
2. 68%
3. 84%
4. 95%

Watch the video version of this Q&A episode on YouTube - https://youtu.be/mSFsi6u3_eE