a) Calculate the correlation coefficient. b) Does this mean that familiarity causes fast reaction time? Why or why not? c) Predict the raw reaction time for a familiarity rating of 4.
Question: A researcher conducts a study of familiarity with certain unusual words and the time it takes a participant to press a button indicating whether the word is singular or plural. All participants rate their familiarity with these on a scale of 1-7 (7 being highly familiar). All participants are timed as well and their reaction time is recorded in seconds. The raw scores from the three participants are listed below .
Participant Familiarity rating (X) Reaction time (seconds) (Y)
1 6 1
2 2 3
3 3 4
a) Calculate the
b) Does this mean that familiarity causes fast reaction time? Why or why not?
c) Predict the raw reaction time for a familiarity rating of 4.
d) What is the proportion of variance in reaction time that is accounted for by familiarity?
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