_______________ is defined as a statistical estimate of the proportion of the total variance in some trait that is attributable to genetic differences among individuals within a group

A t test for independent means is reported as "t(28 ) = 4.21, p< .01." This means

A) the result is not statistically significant. B) there were 28 participants in the study. C) the t score was 4.21. D) the power was high.

Exposure to bright lights is an effective treatment for seasonal affective disorder

a. True b. False Indicate whether the statement is true or false