Answer the following statement(s) true (T) or false (F)
Independent and dependent are really just fancy names for cause and effect.
Ans: T
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Questions about someone's gender or major in college are good examples of these types of ordinal scales.
Answer the following statement true (T) or false (F)
You should be careful about using a chi-square test when
a. the expected frequencies are quite small. b. the obtained frequencies are quite small. c. the expected frequencies are different across the categories. d. both a and c
Matching can reduce the precision of your experiment if
a. the variable on which you match is not highly correlated with the dependent variable b. the variable on which you match is too highly correlated with the dependent variable c. the matching variable and the dependent variable are the same d. None of these are true. Matching always increases the precision of an experiment.
A researcher identifies a neuron in the brain that sends signals to a second neuron. After stimulating the neurons, the researcher finds that the signal being sent between the neurons is stronger than before. Which phenomena can explain this result?
A) consolidation B) cross-cortical storage C) long-term potentiation D) interference