In a study, students received rats they believed to be genetically bred as "maze-bright" or "maze-dull" rats. for the next several days, students trained and recorded how long it took for their rats to complete a maze. although the rats were genetically the same breed, the "maze-bright" rats showed improvement in their performance every day, whereas the "maze-dull" rats did not. this study is examining which of the following?
a. reactivity
b. observer bias
c. observer effects
d. socially desirable responding

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There is tumerous cancer, kawaski disease and more.

It starts with commitment. the health and safety policy is the commitment by the employer to provide and maintain a safe workplace. the commitment of the workforce is also a necessary component.when the workplace parties sit down to develop an ergonomic approach to patient handling, they will develop terms of reference that set forth how the health and safety committee will function in approaching this problem and reach its goal of reduced injuries.in general, a safe patient handling program will involve the following steps: management approval and commitment to develop and implement a patient handling program.perform a needs analysis.create and standardize patient assessment criteria.develop decision trees to standardize actions.determine which controls are needed to implement specific tasks or patient needs.institute a "no-lift" policy, where possible.

What are the choices?