What do scientists know about dark matter? Scientists know that... Scientists hypothesize that... Scientists don't know...

Micah is studying child behavior in playgrounds throughout the world. he wants to see how the children react when teachers select the same child to be the first to use each piece of equipment. which approach is micah is using?

Prior to 1994, rwanda's ethnic population was composed of a. a tutsi minority and a hutu majority b. a hutu minority and a tutsi majority c. an even number of hutus and tutsis d. a rwandan majority with hutu and tutsi minorities select the best answer from the choices provided. a b c d

The primary purpose of a certificate of confidentiality is to: allow law enforcement to investigate abuse cases.protect researchers from disclosing conflicts of interest.prevent subjects from knowing the purpose of a study.protect identifiable research information from compelled disclosure.