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arsen [322]
3 years ago
11

Early research by washburn suggested that stomach contractions caused hunger sensations. later research showed that the presence

of the balloon in washburn's stomach had caused digestive contractions, not hunger contractions. this is an example of the effects of _____ variables on scientific research.
Social Studies
1 answer:
Leviafan [203]3 years ago
7 0
<span>These are third (or confounding) variables. These are the variables that are not accounted for in preliminary research that can color the findings and cause them to be invalid or otherwise unrepeatable. These variables can have an effect that would otherwise not be existent had the variables not been a part of the original research.</span>
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Science question
insens350 [35]

Answer:

The first objective lens that someone should first use to view a slide is the   4x magnification objective lens.

Explanation:

  • This is because the  4x magnification objective lens has got the lowest magnification power.
  • This in turn means that it has the highest field of view.
  • This in turn makes it easier to locate the specimen first before switching to lenses with higher magnification power for focus after finding the location of the specimen.
7 0
3 years ago
The _____ theory says people are "pulled" by external stimuli to act a certain way, whereas the _____ theory says people are "pu
daser333 [38]

The correct answer is incentive; drive-reduction

Explanation: A human being has certain primary and secondary needs that he needs to feel needed. These needs inherently push an individual toward a particular goal. Primary needs may be hunger, thirst, and sexual desire, while secondary needs are those that require the benefits as primary - or the best example is monetary needs.

5 0
2 years ago
Solutions to control road <br>accidents​
amm1812

<u>here's</u><u> </u><u>a</u><u> </u><u>few</u><u> </u><u>for</u><u> </u><u>good</u><u> </u><u>measure</u>

- watch for red light runners. count to three before entering an intersection on a green light.

- watch for pedestrians.

- do not tailgate.

- scan twelve seconds ahead.

- perform engine maintenance regularly.

<u>hope</u><u> </u><u>this</u><u> </u><u>helps</u> :)

8 0
3 years ago
In contrast with _____ research, _____ research allows cause-and-effect conclusions.
Whitepunk [10]
<span>In contrast with correlational research, experimental research allows cause-and-effect conclusions. This is because experimental research limits the number of independent variables to one variable, so we know that the independent variable has an effect on the dependent variable. In correlational research the independent variable is not limited to one, so while we know there is a correlation between the independent and dependent variable, we don't know that it caused it. An example is that on a rainy day we see a people carrying umbrellas. However, the correlation between people carrying umbrellas and the rain does not mean the people carrying the umbrellas caused the rain.</span>
7 0
3 years ago
Fred's parents are very inconsistent. most of the time fred climbs on the furniture without receiving any reprimands; however, s
olganol [36]
That's called a partial reinforcement.
(:
3 0
3 years ago
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