Measurement

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Questions related to Measurement

How long does it take for an OMG particle to travel one light year?

The obvious answer is one year as the speed of the oh-my-God (OMG) particle was calculated to be about 0.999,999,999,999,999,999,999,995,1c. However, at this speed, from the frame of the...

08 August 2018 8,798 46 View

How does taking multiple measurements under the same condition affect experiment power and effect sizes?

In our research group we carry out psychophysics experiments that involve taking multiple measurements, e.g. reaction times or correct detections, under the same combination of variables. I...

08 August 2018 4,757 8 View

How to measure Cognitive Overload produced by an User Interface?

I'm trying to evaluate if an User Interface produces the feeling of cognitive overload in a person. Therefore I'm searching for a) a scale to ask for it and b)factors of an interface affecting...

08 August 2018 3,726 0 View

How does taking multiple measurements under the same condition affect experiment power and effect sizes?

In our research group we carry out psychophysics experiments that involve taking multiple measurements, e.g. reaction times or correct detections, under the same combination of variables. I...

02 August 2018 7,570 7 View

How to read RS-232 data from a digital balance using Arduino IDE?

Hello, I have a laptop (HP EliteBook 8560p) with an on-board 9-pin male com port (COM1). I want to read RS-232 data from a digital balance using this COM1 port by using an Arduino Uno board...

07 July 2018 2,016 7 View

How to compare scl-10 and scl-25 scores?

Any suggestions on how to compare scl10 and scl25 scores? They have a similar scale (1 to 4) but different cutoff for pathology (1.75 & 1.85). Best Jk

11 May 2018 558 6 View

How to compare scl-10 and scl-25 scores?

Any suggestions on how to compare scl10 and scl25 scores? They have a similar scale (1 to 4) but different cutoff for pathology (1.75 & 1.85). Best Jk

05 May 2018 6,003 7 View

Could you please suggest any questionaires about job satisfaction base on Locke theory and work engagement base on Steer theory ?

I working on a research about happiness at work and need questionnaires to measurement job satisfaction and work engagement. Thank you so much for your helping

05 May 2018 829 2 View

Can I treat means of a concept as continuous?

I am trying to perform an ordinal regression. My dependent variable is ordinal as well as my independent variables. However, I've created concepts for the independent variables by taking the mean...

05 May 2018 8,929 2 View

How to measure the perceived contradiction of "need certain resource yet cannot acquire it"?

How to measure the perceived contradiction of "need certain resource yet cannot acquire it"?

29 March 2018 6,618 2 View

How to measure the perceived contradiction of "need certain resource yet cannot acquire it"?

How to measure the perceived contradiction of "need certain resource yet cannot acquire it"?

03 March 2018 1,365 2 View

Does anyone knows an evaluation method for digital libraries?

I'm looking for an evaluation method for digital libraries, particularly, I need to measure the capabilities of any digital library taking into account the technological, conceptual and policies...

03 March 2018 5,476 3 View

Sleeping quality measurement; is there any subjective instrument to asses sleeping quality for the last 24 hours?

Pitsburg Sleeping Quality Index (PSQI) is one kind of subjective measurement in sleeping quality; it asses sleeping quality in the last month; is there any valid and reliable subjective instrument...

02 February 2018 7,459 0 View

Rasch vs IRT?

Application of Rasch analysis and IRT models are becoming increasingly popular for developing and validating a patient reported outcome measure. Rasch analysis is a confirmatory model where the...

02 February 2018 489 28 View

What are some of the most popular DM Styles Instruments used in public sector? (References are highly appreciated!)?

As I am working on a research dealing with decision-making styles of public managers, specifically senior-level managers in Ministry of Infrastructure in the Government of Kosovo, I would highly...

17 December 2017 7,106 3 View

What are some of the most popular DM Styles Instruments used in public sector? (References are highly appreciated!)?

As I am working on a research dealing with decision-making styles of public managers, specifically senior-level managers in Ministry of Infrastructure in the Government of Kosovo, I would highly...

12 December 2017 5,713 4 View

Can I use different measurements for my DV if I run an experiment with repeated measures design?

Say my experiment with repeated measures design is concerning the effect of lighting on memory, and I measure memory by giving participants a random list of 50 words to memorize. Would my...

11 November 2017 5,110 4 View

Ultrasonic container level sensing?

Hello, One of the methods to measure the level of solid / liquid matter in a container is ultrasonic sensing. I have several questions on this method: 1) What are the advantages and...

10 October 2017 6,483 5 View

Empathy: Interpersonal Reactivity Index (IRI) scores are ranged from ? to ? and cut-off scores ?

Dear all, I used the IRI scale in a study and cannot find in papers the mimimum and maximum scores of this scale. Also, I would like to know if there are some cut-off scores, determining excessive...

09 September 2017 5,495 7 View

Does anybody have unpublished data using the 10-item Ruminative Response Scale (RRS)?

I'm working on a Spanish version of the 10-item RRS. However, an informal review of published results suggests that the proposed brooding-reflection model shows suboptimal fit. Does anybody have...

09 September 2017 8,731 2 View

At 0% SOC, why lithium cell doesn't accept high charge current pulses (8C) ?

I am using four (8C,4C,2C,1C) discharge/charge pulses to characterize LFP cell. Basically at 0% SOC, cell doesn't accept 8C charge pulse ? Only rest three pulses can be given. Could any one tell...

09 September 2017 3,318 3 View

Does anybody have unpublished data using the 10-item Ruminative Response Scale (RRS)?

I'm working on a Spanish version of the 10-item RRS. However, an informal review of published results suggests that the proposed brooding-reflection model shows suboptimal fit. Does anybody have...

05 September 2017 10,063 2 View

Difference in standardized estimate value and R-squared value in measurment model of SEM?

I run two-layer measurement model, a sub-construct has 6 measured items.  one item has standardized estimate of 0.754 amd R-squared value is 0.568.  based on standardized estimate the weigtage of...

31 August 2017 2,892 3 View

Where in the invariance testing sequence should correlated errors be included?

I am testing measurement invariance of a questionnaire. I am aware of the fact that some methodologists think it unnecessary to test for invariance of residual variances and covariances. However,...

04 August 2017 483 6 View

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