A theory is valued if it accurately accounts for known observations and yields precise predictions of future measurements. (religion-online.org)
In the early seventeenth century, Galileo pioneered telescopic observations of the Sun, making some of the first known observations of sunspots and positing that they were on the surface of the Sun rather than small objects passing between the Earth and the Sun. (newworldencyclopedia.org)
K — 12 teachers, I will argue, have little use for psychological theory, but could benefit from knowing the observations — developmental patterns and consistencies in children's cognition, motivation, and emotion. (educationnext.org)