An independent-measures study has one sample with n = 10 and a second sample with n = 15 to compare two experimental treatments.What is the df value for the t statistic for this study?
A) ?23
B) ?24
C) ?26
D) ?27
A
You might also like to view...
Paul is trying to research a problem online. He has found a wealth of relevant information. He is examining the information he has collected with a critical attitude, trying to ensure that the information he has collected is valid. Paul is engaged in which aspect of creative problem solving?
a. avoiding mental sets b. gathering information c. adopting a questioning attitude d. testing possible solutions e. sleeping on it
Which statement best describes systems theory?
a. Family systems evolve slowly through psychosocial evolution. b. Family members are interdependent in which each member can influence the others. c. Vicarious reinforcement can be used by family members to create equilibrium. d. Role enactment produces role strain that impacts the family's microsystem.
In Piaget's theory, stages are
(a) qualitative (b) universal (c) sequential (d) A and C, but not B (e) A, B, and C
Similar to height, ___ is/are increasing across generations (termed the "Flynn effect")
a. reaction time b. neural efficiency c. IQ scores d. the amount of information in working memory