When a death and dying course tries to sensitize the non-bereaved to the depth and complexities of grief, this exemplifies which dimension of death-related education?

A researcher is studying the effect of caffeine on students' performance on a visual-spatial test

He tells his research assistant that some students are visual-spatial "gifted" and other students are visual-spatial "challenged," even though there are no actual differences between the two groups. After the assistant collects the data, the results indicate that the "gifted" group outperformed the "challenged" group. This illustrates a) experimenter expectancies b) experimenter characteristics. c) participant expectancies. d) participant characteristics.

Convenience sampling involves selecting individuals who are easy to recruit

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