Homework Revision Questions Chapter One Set six – Animal ethics and reporting Multiple Choice 1/ The best type of graph to use when you want to describe data from two sets of groups would be a: a) line graph; b) histogram; c) pie chart; d) bar chart; 2/ In general, a result is considered statistically significant if it is less than or equal to: a) 0.04; b) 0.05; c) 0.06; d) 0.07 3/ Which of the following is not a right of a study participant: a) withdrawal rights; b) informed consent; c) debriefing; d) prior knowledge; 4/ Descriptive statistics are not good for: a) analysis; b) organisation; c) explaining; d) summarising; TRUE OR FALSE 5/ A study can be reliable without being valid. TRUE 6/ A subject can be deceived as long as they are told the truth after. TRUE Short Answer 8/ The animal colony in the psychology department contains 20 male rats and 30 female rats. Of the 20 males, 15 are white and 5 spotted. Of the 30 females, 15 are white and 15 are spotted. Suppose you randomly select one rat from this colony. a. What is the probability of obtaining a female? p= 30/50 = 0.60 b. What is the probability of obtaining a white male? p= 15/50 = 0.30 c. Which selection is more likely, a spotted male or a spotted female? A spotted female (p=0.30) is more likely than a spotted male (p=0.10) Glossary words to review: Generalisation Reliability Validity Internal validity Ethics P value Conclusion Internal consistency Construct validity Statistical significance