ACTION ITEM -- 3

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University of California, Los Angeles *

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100A

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Psychology

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May 9, 2024

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pdf

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Simple Experiment Homework - Rubric PSYCH 100B Question # Outstanding Mastery Moderate Mastery Weak Mastery No Mastery Study Design (19 total possible points) 1. Based on this scenario, design a simple experiment (i.e., one IV with two levels) and construct a hypothesis that is consistent with the described scenario. Be sure to include significance and directionality in your hypothesis statement. 1a) Identify your independent variable (IV), and the two levels of this IV (3 points) One manipulated IV with two levels has been effectively explained through clearly defined constructs and operational definitions. (3 points) One manipulated IV with two levels has been explained, but the constructs and/or operational definitions need additional clarity. (2 points) The IV is not consistent with the meaning of the proverb or the scenario. Or, if it is consistent, two discrete levels are not provided and/or either the constructs or operational definitions are lacking. (1 point) Answer not relevant to question being asked. (0 points) 1b) Identify the dependent variable (DV), how it is measured, and the scale of measurement used. Your DV should lie on an interval or on a ratio scale to allow for powerful statistical tests of data (3 points) The DV has been effectively explained through clearly describing construct and operational definition. Further, scale is listed and DV lies on an interval or a ratio scale. (3 points) The DV and scale of measurement are listed and DV lies on an interval or ratio scale, but the construct and/or operational definition needs additional clarity. (2 points) The DV does not lie on an interval or a ratio scale or scale of measurement is not listed. Or, if DV does lie on an interval or a ratio scale, construct and/or operational definition is unclear or lacking. (1 point) Answer not relevant to question being asked. (0 points)
1c) Describe your proposed hypothesis (5 points) The stated hypotheses are effectively described through clearly including all needed portions of (a) significance, (b) directionality, and (c) backed up by reasoning drawn from the proverb and scenario itself. (5 points) The stated hypotheses do not include one out of three needed portions of (a) significance, (b) directionality, and (c) backed up by reasoning drawn from the proverb and scenario itself, or additional clarity is needed. (3 points) The stated hypotheses do not include two or more needed portions of (a) significance, (b) directionality, and (c) backed up by reasoning. Or, if it does include all portions, the hypothesis is not consistent with the proverb or reasoning is not drawn from the proverb. (1 point) Answer not relevant to question being asked. (0 points) 2. Indicate whether your proposed study will be a between-subjects or a within-subjects design and why you have selected this design type (3 points) The proposed study is described as between subjects or within-subjects in line with the proverb and scenario, and the rationale for design type selection is effectively explained. (3 points) The proposed study has been described as between subjects or within-subjects, but additional clarity about the rationale for design type selection for this specific study is needed. (2 points) There is no indication if whether the proposed study will be a between-subjects or a within-subjects design. Or, if there is indication, there is no provided rationale for selection of a specific design type. (1 point) Answer not relevant to question being asked. (0 points)
3. Sketch a figure (i.e., a line graph or a bar graph) with results that are consistent with your hypothesis (5 points) The correct figure for the proposed study (i.e., line graph, bar graph) has been created with the IV on the x-axis, the DV on the y axis, correct axes labels, and the displayed results are consistent with hypotheses in 1c. (5 points) The correct figure for the proposed study (i.e., line graph, bar graph) has been created, but the variables on the x-axis and y-axis may be incorrectly labeled and/or displayed results are not consistent with hypotheses in 1c. (3 points) The incorrect figure for the proposed study has been given (i.e., line graph, bar graph), and/or there are no clear axis labels, and/or displayed results are not consistent with hypotheses in 1c. (1 point) Answer not relevant to question being asked. (0 points) Lecture Connection (11 total possible points) 1. Describe one extraneous variable in your study whose potential effects you think need to be controlled and explain why you think this extraneous variable needs to be controlled (5 points) One extraneous variable is effectively described through detailed connection to the proposed study and a clear indication for the potentially ruinous effect of the described extraneous variable on internal validity if not controlled. (5 points) One extraneous variable is described, but connection to the proposed study and/or explanation for the potentially ruinous effect of the described extraneous variable on internal validity if not controlled needs further clarity. (3 points) An extraneous variable is described, but it is unclear what potential effect needs to be controlled and/or why this extraneous variable needs to be controlled. (1 point) Answer not relevant to question being asked. (0 points)
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