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 Help! I don't understand the difference

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Yumi
Senior Member
Saturn Emeritus

Yumi

Senior Member  Saturn Emeritus

Title : (∩`-´)⊃━☆゚.*・。magical weirdo, Original Saturn
Posts : 9410
Join date : 2011-08-19
Age : 28
Location : Scranton, Pa


Help! I don't understand the difference Empty
PostSubject: Help! I don't understand the difference   Help! I don't understand the difference I_icon_minitime15th May 2012, 7:27 pm

Reliability
the degree to which the tool measures the same thing each time it is used

Validity
the degree to which the test measures what it is supposed to measure


I know this seems dumb, but after reading my management notes, I really can't grasp the difference between the two of these Help! I don't understand the difference 2632955583

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Help! I don't understand the difference Pbucket Help! I don't understand the difference WVHOu3A Help! I don't understand the difference Pbucket
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Juu~
Lotus Crystal

Juu~

Lotus Crystal

Title : ~hachi
Posts : 642
Join date : 2011-11-08
Age : 28
Location : Puerto Rico


Help! I don't understand the difference Empty
PostSubject: Re: Help! I don't understand the difference   Help! I don't understand the difference I_icon_minitime15th May 2012, 7:30 pm

for what subject is this?

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Yumi
Senior Member
Saturn Emeritus

Yumi

Senior Member  Saturn Emeritus

Title : (∩`-´)⊃━☆゚.*・。magical weirdo, Original Saturn
Posts : 9410
Join date : 2011-08-19
Age : 28
Location : Scranton, Pa


Help! I don't understand the difference Empty
PostSubject: Re: Help! I don't understand the difference   Help! I don't understand the difference I_icon_minitime15th May 2012, 7:32 pm

Management II

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Help! I don't understand the difference Pbucket Help! I don't understand the difference WVHOu3A Help! I don't understand the difference Pbucket
 ♥️ The Crazy Guinea Pig Lady (Mommy of 4) ♥️
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Juu~
Lotus Crystal

Juu~

Lotus Crystal

Title : ~hachi
Posts : 642
Join date : 2011-11-08
Age : 28
Location : Puerto Rico


Help! I don't understand the difference Empty
PostSubject: Re: Help! I don't understand the difference   Help! I don't understand the difference I_icon_minitime15th May 2012, 7:59 pm

Sorry don't know anything about this topic

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Sailor Uranus
Outer Senshi Admin
Roleplay Director

Sailor Uranus

Outer Senshi Admin  Roleplay Director

Title : Oh, you mean you DON'T have an Elephabulous? Shame.
Posts : 13368
Join date : 2011-09-15
Age : 31
Location : NE Texas


Help! I don't understand the difference Empty
PostSubject: Re: Help! I don't understand the difference   Help! I don't understand the difference I_icon_minitime15th May 2012, 8:07 pm

Got you covered!


Reliability
the degree to which the tool measures the same thing each time it is used

AKA - You measure a stick. The first time around, it measure 10 cm. You measure it again; this time, it measures 10.1 cm. And one more time it measures 10 cm. It is a reliable instrument.

Now let's say you measure a stick and the first time it measures 10 cm. then you measure it again, but this time it measures 9 cm. And again, and it measures 11 cm. And again and suddenly it's, like, 9.5. That instrument is very unreliable, because you can't depend on it to make the same measurement twice.

A better real-life application for this might be a bathroom scale that's super super old (but created recently). You get on it and it reads one thing, then step off and right back on and it reads something completely different - you can't trust it. It's unreliable.
--------------------------------------------------------
Validity
the degree to which the test measures what it is supposed to measure

AKA - Say you're measuring that stick again with your tape measure, and you get some good measurements - it seems reliable. However, when you measure the stick with a ruler, it's completely different. The Validity of your instrument would be how close those marks come to the real thing - what it's supposed to measure.

so, say that this is how big a real centimeter is:
|____|

and this is what your instrument reads as a centimeter:
|________|

Your instrument is InValid. It has low validity.

___________________________


Help! I don't understand the difference ThMyaeHelp! I don't understand the difference 4jsq88
Help! I don't understand the difference EryTeT
Help! I don't understand the difference AE5IZ4
Super Awesome Space Museum//Kyra's RP's
Help! I don't understand the difference UNUQgL
Help! I don't understand the difference Qq4GRc

Help! I don't understand the difference WYxcDXHelp! I don't understand the difference VfipPuHelp! I don't understand the difference QcYyasHelp! I don't understand the difference RCRME8Help! I don't understand the difference MwKWL7Help! I don't understand the difference WbL1DGHelp! I don't understand the difference 2tcOIqHelp! I don't understand the difference JbCUuoHelp! I don't understand the difference V4DbwTHelp! I don't understand the difference YtpCB5Help! I don't understand the difference Mmp9t9Help! I don't understand the difference Dx2prT
Help! I don't understand the difference MWQFX2
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Juu~
Lotus Crystal

Juu~

Lotus Crystal

Title : ~hachi
Posts : 642
Join date : 2011-11-08
Age : 28
Location : Puerto Rico


Help! I don't understand the difference Empty
PostSubject: Re: Help! I don't understand the difference   Help! I don't understand the difference I_icon_minitime15th May 2012, 8:10 pm

Leave it to Kyralih, the master of everything Razz

Hope that helps you Saturn!

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Brit-chan
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Small Lady Emeritus

Brit-chan

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Title : Queen of the Cat Kingdom
Posts : 23235
Join date : 2011-06-23
Age : 31
Location : Lafayette, LA


Help! I don't understand the difference Empty
PostSubject: Re: Help! I don't understand the difference   Help! I don't understand the difference I_icon_minitime15th May 2012, 8:12 pm

Quote :
Quote :
Reliability
the degree to which the tool measures the same thing each time it is used

How often something will measure or always produce the same result.

If you were testing the boiling temperature of water by measuring it with a thermometer the test should be very reliable and give you the same result each time.

Quote :
Validity
the degree to which the test measures what it is supposed to measure

How good was the test at measuring what you were were testing for.

If you were testing to see how fast a piece of card board falls when you throw it out the window and you set it on fire your test didn't have much validity.

I gotta give credit to the boyfriend on this one because i couldn't think of a way to explain it so I asked him to. xD

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Help! I don't understand the difference 20988_vHelp! I don't understand the difference 20988_sHelp! I don't understand the difference 36226_v
Help! I don't understand the difference Et1bWu6Help! I don't understand the difference UYgdPZBHelp! I don't understand the difference IYzEL7Help! I don't understand the difference Zm82bZIHelp! I don't understand the difference Fph3eELHelp! I don't understand the difference 7UeDrPrHelp! I don't understand the difference AwbCmiFHelp! I don't understand the difference I2DGvTXHelp! I don't understand the difference J3LPkpEHelp! I don't understand the difference SA1eBrHelp! I don't understand the difference WHso3iHelp! I don't understand the difference Z9nJOOhHelp! I don't understand the difference VdeecePHelp! I don't understand the difference TfS1i3GHelp! I don't understand the difference XM3t1u
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Brit-chan
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Small Lady Emeritus

Brit-chan

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Title : Queen of the Cat Kingdom
Posts : 23235
Join date : 2011-06-23
Age : 31
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Help! I don't understand the difference Empty
PostSubject: Re: Help! I don't understand the difference   Help! I don't understand the difference I_icon_minitime15th May 2012, 8:12 pm

oh wow. Kyra, you were doing it at the same time. XD

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Help! I don't understand the difference 20988_vHelp! I don't understand the difference 20988_sHelp! I don't understand the difference 36226_v
Help! I don't understand the difference Et1bWu6Help! I don't understand the difference UYgdPZBHelp! I don't understand the difference IYzEL7Help! I don't understand the difference Zm82bZIHelp! I don't understand the difference Fph3eELHelp! I don't understand the difference 7UeDrPrHelp! I don't understand the difference AwbCmiFHelp! I don't understand the difference I2DGvTXHelp! I don't understand the difference J3LPkpEHelp! I don't understand the difference SA1eBrHelp! I don't understand the difference WHso3iHelp! I don't understand the difference Z9nJOOhHelp! I don't understand the difference VdeecePHelp! I don't understand the difference TfS1i3GHelp! I don't understand the difference XM3t1u
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Sailor Uranus
Outer Senshi Admin
Roleplay Director

Sailor Uranus

Outer Senshi Admin  Roleplay Director

Title : Oh, you mean you DON'T have an Elephabulous? Shame.
Posts : 13368
Join date : 2011-09-15
Age : 31
Location : NE Texas


Help! I don't understand the difference Empty
PostSubject: Re: Help! I don't understand the difference   Help! I don't understand the difference I_icon_minitime15th May 2012, 8:13 pm

Small Lady wrote:
If you were testing to see how fast a piece of card board falls when you throw it out the window and you set it on fire your test didn't have much validity.

LMAO. FULL WIN.

___________________________


Help! I don't understand the difference ThMyaeHelp! I don't understand the difference 4jsq88
Help! I don't understand the difference EryTeT
Help! I don't understand the difference AE5IZ4
Super Awesome Space Museum//Kyra's RP's
Help! I don't understand the difference UNUQgL
Help! I don't understand the difference Qq4GRc

Help! I don't understand the difference WYxcDXHelp! I don't understand the difference VfipPuHelp! I don't understand the difference QcYyasHelp! I don't understand the difference RCRME8Help! I don't understand the difference MwKWL7Help! I don't understand the difference WbL1DGHelp! I don't understand the difference 2tcOIqHelp! I don't understand the difference JbCUuoHelp! I don't understand the difference V4DbwTHelp! I don't understand the difference YtpCB5Help! I don't understand the difference Mmp9t9Help! I don't understand the difference Dx2prT
Help! I don't understand the difference MWQFX2
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Brit-chan
Senior Member
Small Lady Emeritus

Brit-chan

Senior Member  Small Lady Emeritus

Title : Queen of the Cat Kingdom
Posts : 23235
Join date : 2011-06-23
Age : 31
Location : Lafayette, LA


Help! I don't understand the difference Empty
PostSubject: Re: Help! I don't understand the difference   Help! I don't understand the difference I_icon_minitime15th May 2012, 8:15 pm

lol my boyfriend's so funny. if only he didn't not like sailor moon, i'd get him to join. xD

___________________________

Help! I don't understand the difference 20988_vHelp! I don't understand the difference 20988_sHelp! I don't understand the difference 36226_v
Help! I don't understand the difference Et1bWu6Help! I don't understand the difference UYgdPZBHelp! I don't understand the difference IYzEL7Help! I don't understand the difference Zm82bZIHelp! I don't understand the difference Fph3eELHelp! I don't understand the difference 7UeDrPrHelp! I don't understand the difference AwbCmiFHelp! I don't understand the difference I2DGvTXHelp! I don't understand the difference J3LPkpEHelp! I don't understand the difference SA1eBrHelp! I don't understand the difference WHso3iHelp! I don't understand the difference Z9nJOOhHelp! I don't understand the difference VdeecePHelp! I don't understand the difference TfS1i3GHelp! I don't understand the difference XM3t1u
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Help! I don't understand the difference Empty
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