Hermann von Helmholtz is known for
a. his contributions to the study of philosophy.
b. his contributions to the study of learning and memory.
c. his invention of the electroencephalograph.
d. measuring the speed of light.
e. his measurements of nerve cell conduction velocity.
Answer: e. his measurements of nerve cell conduction velocity.
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Imagine that you are attending a lecture on gender comparisons in college students' reading comprehension. The speaker says, "The effect size for this kind of reading-comprehension test was 0.15.". You would conclude that
a. this gender difference is larger than the gender difference in height. b. a box-score approach would have provided more useful information. c. the probability of finding a difference this large is about 15%. d. the gender difference is not large enough to have an influence on people's career choices.
When we draw conclusions about a population based on data collected from a sample, we are using:
a. the null hypothesis. b. the alternative hypothesis. c. inferential statistics. d. none of the above.
Which of the following statements is true regarding the effectiveness of psychotherapy?
A. There is little significant difference between the different treatment approaches. B. About 30-50% of clients who receive psychotherapy show great improvement. C. Some forms of psychotherapy are no more effective than just being placed on a waiting list. D. The most effective form of psychotherapy is psychoanalysis.
What is the first menstrual period of girls called, and when does it occur?
What will be an ideal response?