Deck 2: A: Reading and Evaluating Scientific Research

Question 1

When a distribution is skewed,the median is a better measure of the "average" than the mean.

Answer 1

True

Question 2

The mean,median,and mode are all measures of central tendency.

Answer 2

True

Question 3

Using random sampling increases the likelihood that the results from studying a sample will generalize to the population.

Answer 3

True

Question 4

A correlation of -.80 is a stronger relationship than a correlation of +.50.

Question 5

In a double-blind experiment,neither the participant nor the researcher knows which treatment group the participant is in.

Question 6

Once the results of a study have been peer reviewed and published they are considered accurate,even if other researchers cannot replicate them.

Question 7

If someone takes an intelligence test several times and receives the same score,the test has high validity.

Question 8

Asking participants to write about upsetting or traumatic experiences puts them at risk for cognitive and emotional stress.

Question 9

If the distribution of quiz scores for a class has high variability,most of the students scored within a few points of each other.

Question 10

The right to give informed consent stays with a volunteer throughout the entire study,and they should be able to withdraw at any point.

Question 11

If a group of researchers find that the number of books fifth grade students read is positively correlated with their scores on an intelligence test,it would be correct to conclude that having children read more increases their intelligence.

Question 12

A negatively skewed distribution has a long tail on the right of the cluster.

Question 13

For security and confidentiality reasons,once the results of a study are reported in a journal or at a conference,the data should be destroyed.

Question 14

Researchers are not allowed to deceive participants about the purpose of the study.

Question 15

Good scientific research is based on measurements that are objective,valid,and reliable.

Question 16

If researchers find a statistically significant result,they would be likely to find the same result if they replicated the study again.

Question 17

Surveys and questionnaires are used to collect self-report data.

Question 18

Researchers must give participants total anonymity.

Question 19

Pedro designs an experiment to test whether drinking a protein shake after weightlifting increases muscle development.The independent variable in his experiment is the protein shake.