The class is Psychology - 223 but it's more a Statistics question... 1.I need to describe the...

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The class is Psychology - 223 but it's more a Statisticsquestion...

1.I need to describe the hypothesis associated with myresearch scenario.

2. I need to state my understanding of what eachhypotheses mean.

3. I need to identify the null and alternativehypothesis using appropriate statistical symbols and language basedon what is being compared in my research scenario.

And can someone please explain to me how to use that immage upload thing that is asking for a URL on the (immageproperties), I have no idea what to put in that spot.

PSY 223 Milestone Three Worksheet

Review the critical elements that must be addressed in the finalproject. Use this worksheet to create Milestone Three. Ahypothesis is a position about research outcomes.In this assignment, you will describe two hypotheses associatedwith your research scenario.

Points to consider: A researcher acts like the coach of a sportsteam. In a pregame meeting, a coach describes the possiblescenarios associated with outcomes of a game. “If we win, it meanswe go to the playoffs; if we lose it means our season is over.” Thecoach’s specificity helps ensure everyone is clear on what the teamis up against and what is at stake. Before doing an analysis,researchers do something similar. They acknowledge potentialoutcomes of the upcoming analysis. “We can find either: (a)variation in the data reflects chance, or (b) variation in the datais due to a systematic law.” Researchers call position (a)null hypothesis (symbolizedH0). Researchers call position (b)alternative hypothesis (symbolizedHa). A researcher customizes the hypotheses toa study, using symbols and information about the specificstudy.

1. Indicate your research hypotheses (null andalternative), incorporating the appropriate symbols. [To answerthis question, you need, in part, to look at the researchscenario.]  

2.State what the hypotheses mean.

[Some overlap may exist with your answer to # 1. These arerelated rather than mutually exclusive questions.]

Scenario 2 (Forensic Psychology)

Levels of groups' certainties about their eyewitness testimonyto a simulated crime were compared. The first group was set up tobe \"right\" in its eyewitness accounts and the second group was setup to be \"wrong\"; the desire was to see if confidence differedacross groups. Thirty-four participants were recruited from acollege campus and randomly divided into two groups, both of whichwere shown a video of a crime scenario (length: 58 seconds) inwhich the perpetrator's facial characteristics (with respect to thecamera) were clearly visible at two separate points andsporadically visible at others. Half the participants then wereshown a five-individual lineup that contained the perpetrator inthe video (\"Group A\"), and half the participants were shown afive-individual lineup that did not contain the perpetrator (\"GroupB\"). Participants were asked to (a) identify if and where theperpetrator was in the lineup and (b) provide a rating ofconfidence on a scale from 1 to 10 (10 being highly confident) thatthe selection was the same as the person seen in the videocommitting the crime. All participants signed consent forms, weretold they could leave the study at any time, and were told theywould be debriefed. Data on the confidence ratings are shown below(also found in the Data Set Scenario 2 Excel file).

Group A Confidence Group B Confidence

07 10

10 05

09 05

10 10

08 07

05 06

10 10

10 09

01 03

10 06

05 04

06 10

07 10

06 10

04 03

05 07

10 08

.

Answer & Explanation Solved by verified expert
3.6 Ratings (696 Votes)
Let be the true average confidence of group A and be the true average confidence of group BThe desire was to see if confidence differedacross groups That means the desire is to see if the meanconfidence of group A is different from mean confidence of group BThat is the desire is to test if Paraphrasing we want to test if the mean confidence of thefirst group group A that was set up to be right in itseyewitness accounts differs from the mean confidence of the secondgroup that was set up to be wrong about their eyewitnesstestimony1    See Answer
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