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Author Question: In an investigation of the effects of caffeine on concentration, half the participants were given ... (Read 29 times)

crazycityslicker

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on: Oct 8, 2020

Question 1

In an experiment, which term refers to the variable that is controlled or manipulated by the researcher?

◦ stimulus variable
◦ dependent variable
◦ control variable
◦ independent variable

Question 2

In an investigation of the effects of caffeine on concentration, half the participants were given colas that contained caffeine and half were given decaffeinated colas. In this study, what is decaffeinated cola?

◦ a random factor
◦ a confounding variable
◦ a dependent variable
◦ a placebo
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Marked as best answer by crazycityslicker on Oct 8, 2020

kalskdjl1212

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Reply #1 on: Oct 8, 2020
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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crazycityslicker

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Reply 2 on: Oct 8, 2020
Excellent

jamesnevil303

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Reply 3 on: Yesterday
Wow, this really help

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