Researchers wanted to investigate the effects of having plants in the laboratory (plants present, plants absent) and giving participants a snack prior to participating (cookie, carrots) influenced participants' aggressiveness after completing 30 minutes of a tedious and seemingly unending task (e.g., rotating each of 64 dowels in a grid a quarter-turn, and when finished, repeating the process). Which of the following could be considered demand characteristics in the context of this study? (circle all that apply)
A) the screen-savers on the lab computers are all of serene landscape photographs
B) the presence of lush flora on the grounds surrounding the research building
C) during the boring experimental task, the researcher says to a research assistant, loud enough for the participant to hear: "I need a snack. If I don't eat, I get cranky"
D) a poster of the food pyramid on the far wall of the laboratory

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The Answer of Researchers wanted to investigate the effects of having plants in the laboratory (plants present, plants absent) and giving participants a snack prior to participating (cookie, carrots) influenced participants' aggressiveness after completing 30 minutes of a tedious and seemingly unending task (e.g., rotating each of 64 dowels in a grid a quarter-turn, and when finished, repeating the process). Which of the following could be considered demand characteristics in the context of this study? (circle all that apply)
A) the screen-savers on the lab computers are all of serene landscape photographs
B) the presence of lush flora on the grounds surrounding the research building
C) during the boring experimental task, the researcher says to a research assistant, loud enough for the participant to hear: "I need a snack. If I don't eat, I get cranky"
D) a poster of the food pyramid on the far wall of the laboratory

Researchers Wanted to Investigate the Effects of Having Plants in the Laboratory