Several days into the study, some of the students in the math-based reading program were getting frustrated by the frequent questions from their teacher. The students wanted to see the story in the books progress quickly, and they began acting out. The teacher decided it was best to either let these students join the control reading program or to try reading on their own in a different part of the classroom. Thus these students no longer participated in the math-based reading program. The researchers found that students in the math-based reading program performed much better on the PICO post-test than students in the control reading program. Which internal validity threat is most likely occurring in this scenario

Which statement reflects a citizens need to increase his civic particpation

Tanya was used to using word, and she did some work for her brother mike, who was using wordperfect. tanya was quickly able to use wordperfect for windows with little difficulty, since many of the commands for it were the same as the commands for word. tanya's ability to use wordperfect best illustrates:

Based on your approved case, create fictitious digital evidence. you may use logs from your own computer (no personal information) as a guide or search the internet for samples. these samples do not have to be technically correct, but there must be a reasonable presumption that this information would exist, supported by a reference. document who, when, and how the evidence was obtained. remember, you are creating fictitious examples, so refer to prior reading or examples of how digital evidence was collected. if necessary, refer to the "who" as a "systems administrator" and ensure the fictitious person is identified and referenced in your investigation. digital evidence must meet each of the following criteria: some of your digital evidence must be retrieved by computer forensics. some of your digital evidence must be retrieved from log files. digital evidence must contain information to support who, what, when, where, and how the cyber-crime was committed. present digital copies of your evidence in text files, screen shots, or pdfs.