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Homework answers / question archive / The authors of the paper "Action-Video-Game Alters the Spatial Resolution of Vision" (Psychological Science[2007):88-94) concluded that spatial resolution, an important aspect of vision is improved by playing action video games
The authors of the paper "Action-Video-Game Alters the Spatial Resolution of Vision" (Psychological Science[2007):88-94) concluded that spatial resolution, an important aspect of vision is improved by playing action video games. They based this conclusion on an experiment in which 32 volunteers who had not played action video games were "equally and randomly divided between the experimental and control groups." Subjects in each group played a video game for 30 hours over a period of 6 weeks. Those in the experimental group played Unreal Tournament 2004, an action video game. Those in the control group played Tetris, a game that does not require the user to process multiple objects at once. Based on this description of the experiment, which control is part of the experiment design? Check all that apply. a control group i random assignment This experiment randomly assigns participants to two groups, the Unreal Tournament group and the Tetris group. direct control blinding This experiment does not use blinding. Both the researcher and the participant know which treatment the participant received (Tetris vs. Unreal Tournament). Quiz Score: 6 out of 10
Based on the descriptions of the experiment random assignment design is used in the experiment as the participants of the experiment are divided into two groups.The first group consisting of 16 members playing unreal tournament and the second group of other 16 members playing tetris.
CONTROL GROUP is not applicable because The control group is composed of participants who do not receive the experimental treatment. When conducting an experiment, these people are randomly assigned to be in this group. They also closely resemble the participants who are in the experimental group or the individuals who receive the treatment.
DIRECT CONTROL IS NOT APPLICABLE BECAUSE IT IS A VARIABLE THAT IS NOT OF INTEREST IN THE CURRENT STUDY BUT IS THOUGHT TO AFFECT THE RESPONSE VARIABLE. Term. DIRECT CONTROL. Definition. HOLDING EXTRANEOUS FACTORS CONSTANT SO THAT THEIR EFFECTS ARE NOT CONFOUNDED WITH THOSE OF THE EXPERIMENTAL CONDITIONS.
BLINDING IS NOT APPLICABLE IN THIS EXPERIMENT BECAUSE Blinding (or masking) is the process used in experimental research by which study participants, persons caring for the participants, persons providing the intervention, data collectors and data analysts are kept unaware of group assignment (control vs intervention). Blinding aims to reduce the risk of bias that can be caused by an awareness of group assignment. With blinding, outcomes can be attributed to the intervention itself and not influenced by behaviour or assessment of outcomes that can result purely from knowledge of group allocation.
