A repeated-measures experiment and a matched-subjects experiment each produce a t statistic with df = 10. How many individuals participated in each study?
A) ?11 for repeated, and 11 for matched
B) ?11 for repeated, and 12 for matched
C) ?11 for repeated, and 22 for matched
D) ?12 for repeated, and 12 for matched
C
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It is the unique interaction of inherited and environmental factors that determines people's patterns of development.
Answer the following statement true (T) or false (F)
Cosella is conducting an experiment where she assesses how quickly teenagers can run a 100-meter race after consuming specific amounts of caffeine. She divides her sample up into three groups. Group 1 receives a glass of water with no caffeine added. Group 2 receives a glass of water with an amount of caffeine equivalent to that in one cup of coffee. Group 3 receives a glass of water with an
amount of caffeine equivalent to that in two cups of coffee. Each participant is then timed as they run the course. In this study, the dependent variable is a. the previous running experience of each participant. b. the teenagers who are being studied. c. the time it takes to run the 100-meter race. d. the amount of caffeine being ingested.
For ______ sampling technique, the chance of any one person being selected is 1 divided by the total number of people in the sample.
A. simple random B. convenience C. cluster D. stratified random
The "sexual psychopath laws" that were passed in the mid-1900s provided for a. an indefinite period of hospitalization for sex offenders
b. an indefinite prison term for sex offenders. c. a loophole that allowed pedophiles and rapists to circumvent punishment d. both a and b