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Chapter 4: Q 72. (page 256)

Testosterone for older menAs men age, their testosterone levels gradually decrease. This may cause a reduction in lean body mass, an increase in fat, and other undesirable changes. Do testosterone supplements reverse some of these effects? A study in the Netherlands assigned 237men aged 60-80with low or low-normal testosterone levels to either a testosterone supplement or a placebo. The report in the Journal of the American Medical Association described the study as a “double-blind, randomized, placebo-controlled trial.”40 Explain each of these

terms to someone who knows no statistics.

Short Answer

Expert verified

Double blind experiment: neither the subjects nor the individuals who measure know the treatment received.

Randomized: Subjects randomly assigned to the groups.

Placebo controlled: Only control group received a placebo.

Step by step solution

01

Given Information

With increase in men age, testosterone decrease that result in increase of fat.

A study suggested that 237men aged 60-80with low to normal testosterone level to either a testosterone supplement or a placebo.

02

To determine

Explanation of each terms to one not knowing statistics.

03

Explanation

Double blind experiment: A double blind experiment is in which neither the subjects nor the individuals who measure know the treatment received.

Randomized: It refers to the subjects randomly assigned to the groups.

Placebo controlled: It refers to only control group received a placebo.

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Most popular questions from this chapter

When we take a census, we attempt to collect data from

(a) a stratified random sample.

(b) every individual selected in an SRS.

(c) every individual in the population.

(d) a voluntary response sample.

(e) a convenience sample.

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Describe how you would carry out the random assignment. Provide enough detail that a classmate could implement your procedure.

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