IV, Levels, and DV
Measurement Scale
Statistical Procedure
SPSS Outputs
Misc.
100
Professor Jonestown was interested in determining if a mind-control technique increased obedience among children in his Toddlers' Academic for Incorrigible Children. Group 1 was subjected to the mind-control technique; group 2 was subjected to the traditional method: beating. At the end of three weeks, professor Johnstown applied an obedience scale to each participant (scores were 1=not obedient, 5=obedient). What are the IV Levels?
Level 1: Mind-control Technique
Level 2: Beating
100
Pain scale showing pictures of faces ranging in level of pain.
Bonus (+100): Discrete or Continuous?
Ordinal
Bonus: Discrete
100
An urban sociologist was interested in neighborliness collected data for a sample of 10 adults (X) regarding how many years they have lived in their neighborhood and (Y) how many of their neighbors they regard as friends. How can we predict the number of friends a person has when (s)he has lived in the area for 3 years?
Pearson R
100
Is there an interaction?
Yes
100
Statistical procedures for making decisions about samples.
Descriptive Statistics
200
A social psychologist thinks that people are more likely to conform to a large crowd than to a single person. To test this hypothesis, the social psychologist had either one person or five persons stand on a busy walking path on campus and look up. The psychologist stood nearby and counted the number of people passing by who also looked up. What is the DV?
Conformity/Looking Up
200
The number of people in your classroom.
Bonus (+100): Discrete or Continuous?
Ratio
Bonus: Discrete
200
Does the type of reading a student does vary by season? To find out, a communication specialist interviewed a sample of 10 children regarding the number of books they had read during two times of the year. First, she had them rate the books they read during the summer for how much they liked each one on a scale of 1 to 10 for fun. Then she compared this to the ratings of the books these same children had read during the school year for fun. How would we find out if there is a difference in the rating of the books read by the students during the summer for pleasure and those read for pleasure during the school year?
Dependent T
200
What is the K in this study?
3
200
Statistical procedures for making decisions about population scores and relationships based on sample data.
Inferential Statistics
300
A social psychologist thinks that people are more likely to conform to a large crowd than to a single person. To test this hypothesis, the social psychologist had either one person or five persons stand on a busy walking path on campus and look up. The psychologist stood nearby and counted the number of people passing by who also looked up. What is the IV?
The number of people standing on a busy walking path on campus and looking up.
300
The final grade in the class in letter form (i.e., A, B, C, D, F)
Bonus (+100): Discrete or Continuous?
Ordinal
Bonus: Discrete
300
A researcher was interested in the effects of emotion-evoking music on exam performance. Before their SPSS exam, a lecturer took one group of students to a room in which calming music was being played. A separate group of students was taken to another room in which the ‘death march’ was being played. The students then did the exam and their marks were noted. What statistical test should he use?
2-Sample Independent T Test
300
How many participants (N) were there in this study?
100
300
What kind of distribution is this?
Normal Distribution
400
Professor Jonestown was interested in determining if a mind-control technique increased obedience among children in his Toddlers' Academic for Incorrigible Children. Group 1 was subjected to the mind-control technique; group 2 was subjected to the traditional method: beating. At the end of three weeks, professor Johnstown applied an obedience scale to each participant (scores were 1=not obedient, 5=obedient). What is the IV?
Obedience technique(s)
400
Amount of salt in your salad (in grams).
Bonus (+100): Discrete or Continuous?
Ratio
Bonus: Continuous
400
A random sample of 44 children (all 5 years old) was selected and given the reading test of the WRAT (Wrug Rat Achievement Test). The sample mean was 20.98. How can we test to see whether or not the sample could be representative of the population whose mean was 23.52 and with a standard deviation of 3.08?
1-Sample Z
400
Is the following output statistically significant?
Bonus (+100): Why?
Yes
Bonus: p < 0.05
400
A number that describes an aspect of a population.
Parameter
500
Can blueberries slow down aging? A study indicates that antioxidants found in blueberries may slow down the process of aging. In this study, 19-month-old rats (equivalent to 60-year-old humans) were fed either their standard diet or a diet supplemented by either blueberry, strawberry, or spinach powder. After eight weeks, the rats were given a memory and motor test. Although all supplemented rats showed improvement, those supplemented with blueberry powder showed the most notable improvement. What is the IV?
Type of diet fed to rats
500
Change in pain score after taking pill.
Interval
500
A high school guidance counselor is interested in the relationship between proximity to school and participation in extracurricular He collects the data on distance from home to school (in miles) and the number of clubs joined for a sample of 109 juniors. How should he analyze this data?
Pearson R
500
What is the N in this study?
Bonus (+100): What kind of test does this look like?
40
Bonus: Dependent T
500
Let's say I rejected H0, but I should have retained H0. If I claim that there was a statistical difference when there was not...
Type 1 Error