When Thomas, an autistic boy, was ignored after instances of self-destructive behavior, his tendency to injure himself disappeared. The operant principle employed was nonreinforcement and will lead to which of the following occurring?

Regarding women and persons of color in the field of psychology, which of the following statements is FALSE?

a. By 2000, over 70 percent of all undergraduate and graduate degrees in psychology have been awarded to women. b. By 2000, one quarter of all undergraduate degrees and sixteen percent of doctorates in psychology were awarded to persons of color. c. In 1920, Francis Cecil Sumner became the first African-American to earn a doctoral degree in psychology. d. Margaret Washburn became the first African-American female to be awarded a Ph.D. in 1933.

Because the repeated-measures ANOVA removes variance caused by individual differences, it usually is more likely to detect a treatment effect than the independent-measures ANOVA is

Indicate whether the statement is true or false