Summary: Statistics 1 And 2
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Read the summary and the most important questions on Statistics 1 and 2
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1 Book page 1-5
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What provide quantitative variables?
Information about the amount of something (height) -
How do we describe numerical scores when they are compared?
More than or less than -
How are variables called with scores that correspond to ranks?
Ordinal variables -
If five points ratings are evaluated according to the formal levels of measurement where do they lie? (Likert scale)
Between the ordinal rank and interval levels of measurement -
What is another word rival explanatory variables?
Confounding/ third variables -
When do rival explanatory variables arise?
In situations where many variables (other than X) might influence Y -
What do we use in non experimental studies to try to rule out effects of rival explanatory variables?
Statistical control -
When are two independent variables confounded?
When scores for two potential causes or independent variables co-occur -
What is a common way to try to prevent confound of treatment with participants characteristics?
Random assignment -
Explain standardization and experimental control
The researcher has control over the type and amount of treatment.
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