SOLVED

21)During a research study it becomes apparent that the procedures being used are causing differential drop out rates. This creates the possibility of confounding due to A)sequence effects. B)diffusion of treatment. C)selection variability. D)attrition. 22)You are conducting a research experiment on sleep deprivation. Your procedure involves playing loud noises while people are sleeping in your lab. You notice that as they study goes on, people are dropping out of your study. What is the most likely confound in this experiment? A)Attrition. B)Instrumentation. C)Testing. D)Sequence effects. 23)If during testing it becomes apparent that participants in different groups are talking about the research procedure, the confounding variable to consider is A)selection. B)attrition. C)diffusion of treatment. D)sequence effects. 24)Assume we are studying two groups. One group is scheduled on Wednesday morning and another on Wednesday afternoon. Participants are selected on availability. The confounding variable in this study is A)selection. B)attrition. C)testing. D)instrumentation. 25)The possibility of confounding due to ________ is particularly important in low-constraint and differential research. A)selection B)regression to the mean C)attrition D)effects of repeated testing 26)When research participants give information to prospective participants about the procedures, the research could be affected by the confounding variable of A)the bystander effect. B)diffusion of responsibility. C)diffusion of treatment. D)regression to the mean. 27)When participants are lost differentially, any observed effect can be confounded by A)diffusion of treatment. B)attrition. C)history. D)attribution. 28)In a study using a within-subjects design, a likely confounding variable is A)attrition. B)sequence effects. C)selection. D)regression to the mean. 29)Sequence effects are particularly likely in what type of research? A)Between-subjects designs. B)Between-groups designs. C)Naturalistic and case-study research. D)Within-subjects designs 30)When experiences with previous conditions affect responding to subsequent conditions,  A)instrumentation effects might occur. B)the possible confounding is called sequence effects. C)attrition is likely to be a confounding factor. D)subject effects will be present. 31)To control for sequence effects, it would be necessary to A)use more than one order of conditions. B)select participants on the basis of high scores on a measure. C)randomly assign participants to groups. D)ask participants not to tell anyone about the research procedures. 32)Which confounding variable can only occur in within-subjects studies? A)Regression to the mean. B)Diffusion of treatment. C)Sequence effects. D)Testing.Â