Reference no: EM13494003

1. David investigates sex differences between boys and girls with regard to verbal aggression. To assess verbal aggression, he measures the number of insensitive comments boys and girls say to one another. The specification of how verbal aggression is measured is also referred to as a(n)

-hypothesis

-prediction

-theory

-operational definition

2. In the following distribution of annual incomes from a small research study, what is the best measure of typical income?

10,000  20,000  20,000  30,000  40,000  40,000  40,000  50,000  50,000  60,000  1,500,000

-Mean

-Median

-Mode

-All of the above, because they are equal with the above data

**Is the answer is Median?

3. Michelle investigates whether the use of Powerpoint slides is more effective than the use of overhead transparencies in teaching statistics. The morning section of her course is exposed to Powerpoint slides while her evening section is exposed to overhead transparencies. Students in both sections are tested at the same time in the morning. In this scenario, time of day of the class, would be considered a(n)________ variable.

-independent

-dependent

-control

-confounding

4. ________ is a statistical technique involving the combination of results from several studies in an attempt to determine whether there is a relationship among variables that extends beyond one study.

-Descriptive analysis

-Inferential analysis

-Meta-analysis

-Quasi-analysis

5. Phil investigates whether caffeine helps improve memory. In his study, the participants receive either caffeine tablets or a placebo and they then receive a list of words to study. In the final phase of the study, they are tested on the studied words to see how many they can remember. What is the independent variable?

-the drug administered- caffine versus placebo

-each participant's usual intake of caffine

-word test

-number of words recalled

*Is the answer "The drug administered-caffine versus placebo"?

6. That a personality test actually measures variables related to personality illustrates which of the following concepts

-Reliability

-test-retest reliability

-validity

-cross validation

7. ________ bias is likely to occur when participants in a study are selected in a haphazard manner.

-Response

-Reliability

-Sampling

-Valid

8. Astrology is considered to be:

-a liegitimate branch of psychology

-a legitimate science

-pseudopsychology

-a form of ESP

*Is the answer pseudopsychology?

9. A good theory is:

-hard to disprove

-falsifliable

-always correct

-proved to be 100% true.