A researcher conducts an experiment to investigate a new medication. She utilizes a matched-set design to control for sex differences among participants and measures their hormonal levels at three time points throughout the study.
The treatment conditions include a control group of participants who do not receive the medication, a group who receives a low dose, and a group who receives a high dose. To determine group mean differences, these data would be analyzed using a
a) one-way ANOVA for correlated groups
b) one-way ANOVA for independent groups.
c) t test.
d) power analysis.
Question 2
Eye tracker data show that a reader repeatedly returns to words that she has already fixated on and spends unusually large amounts of time on certain words. Which of the following statements likely characterizes this reader?
a) She likely has poor reading comprehension
b) She likely has good reading comprehension.
c) She likely reads very rapidly.
d) She likely tries to process whole groups of words at a time.
Chuckwalla body lengths at the end of a laboratory rearing experiment
The swan neck flask experiment
NCC MERP Index for categorizing medication errors.
The Milgram Obedience Experiment
Opener A researcher examines an agarose gel
Rosalind Franklin, shown here on holiday, used X-ray diffraction to investigate the structure of DNA