Hypnosis is a procedure in which a practitioner suggests changes in the sensations, perceptions, thoughts, feelings, or behaviors of the subject

Evidence suggests that formal academic training during early childhood

A) produces children who have more confidence in their academic abilities. B) produces children who display fewer stress behaviors, such as wiggling and rocking. C) enhances children's study habits throughout the school years. D) undermines young children's motivation and emotional well-being.

Some summary tables include a term labeled "mean" or "constant," with a corresponding F test. This tests the hypothesis that

a. the mean is equal to each of the population means. b. the mean of the scores is equal to the population mean. c. the population mean is 0.00. d. subjects are all equal.