Chapter 12 13 vocab Crossword
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
 
 
Down: 1) anything in a survey design that influences response3) bias introduced to a sample when individuals can choose on their own whether to participate5) variable whose levels are controlled7) individuals that participate because they are convenient8) the population is divided into several subpopulations and then random samples are drawn from each9) systematic failure of a sample to represent its population10) sample drawn by selecting individuals systematically from a sampling frame13) values calculated for sampled data15) sampling schemes that combine several sampling methods16) process, intervention or other controlled circumstance17) entire groups are chosen at random; usually done as convenience23) a large fraction of those samples fail to respond26) tendency of many human subjects to show a response when given a null treatment27) example; polls taken to assess voter preferences31) groups of experimental units are similar isolating a variable32) subjects who are similar in ways not under study and then compared Across: 2) manipulates factor level to create treatments and compares the responses4) entire group about whom we want to learn6) example; the mean income of all employed people in the country7) when the levels of one factor are associated with the levels of another factor11) a sample that has its statistics computed from it accurately reflecting the corresponding population parameters12) when an observed difference is too large to believe that it is likely to have occurred naturally14) examined in hope of learning about the population18) natural tendency of randomly drawn samples to differ19) variable whose values are compared across different treatments20) no manipulation of factors21) specific values that the experimenter chooses for a factor22) an experiment must assign experimental units to treatment groups at random24) each individual is given a fair, random chance of selection25) fails to sample from some part of the population28) individuals on whom an experiment is performed29) a list of subjects from whom the sample is drawn30) when two individuals who can have an influence on an experiment are blind33) when one individual who could influence an outcome of an experiment is blinded34) sample consisting of the entire population35) units assigned to a baseline treatment level; provides a basis for comparison36) subjects are followed to observe future outcomes37) each set of elements in the population has an equal chance of selection38) a null treatment39) previous conditions or behaviors are used
 

 

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