video gamer believes that team composition greatly affects win rate. To test this idea, the player decides to play 100 matches with teams of 3 colors: Red, Green, and Blue. The player records the number of matches he wins with each team color. Given anecdotal evidence, the gamer believes his red team is the best and therefore will win the most games. He has less experience with his blue and green team and is interested to see if there is a difference between the two. Because the gamer is more experienced with his red team, he plays more matches with that team. The total number of matches played per team color is: Red-50, Blue-23, and Green 27. a) What is the IV of this experiment? What are the levels of the IV? What is the scale of measurement of the IV? b) What is the DV of this experiment? What is the scale of measurement of the DV? c) Is this a True experiment or not? Explain your reasoning.
Inverse Normal Distribution
The method used for finding the corresponding z-critical value in a normal distribution using the known probability is said to be an inverse normal distribution. The inverse normal distribution is a continuous probability distribution with a family of two parameters.
Mean, Median, Mode
It is a descriptive summary of a data set. It can be defined by using some of the measures. The central tendencies do not provide information regarding individual data from the dataset. However, they give a summary of the data set. The central tendency or measure of central tendency is a central or typical value for a probability distribution.
Z-Scores
A z-score is a unit of measurement used in statistics to describe the position of a raw score in terms of its distance from the mean, measured with reference to standard deviation from the mean. Z-scores are useful in statistics because they allow comparison between two scores that belong to different normal distributions.
video gamer believes that team composition greatly affects win rate. To test this idea, the player decides to play 100 matches with teams of 3 colors: Red, Green, and Blue. The player records the number of matches he wins with each team color.
Given anecdotal evidence, the gamer believes his red team is the best and therefore will win the most games. He has less experience with his blue and green team and is interested to see if there is a difference between the two. Because the gamer is more experienced with his red team, he plays more matches with that team. The total number of matches played per team color is: Red-50, Blue-23, and Green 27.
a) What is the IV of this experiment? What are the levels of the IV? What is the scale of measurement of the IV?
b) What is the DV of this experiment? What is the scale of measurement of the DV?
c) Is this a True experiment or not? Explain your reasoning.
d) What is the hypothesis of this experiment? Is it directional or nondirectional?
e) What kind of statistical test would you use.
f) Are there any threats of internal validity? Explain your reasoning.
g) Are there any threats of external validity? Explain your reasoning.
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