In a Double-Blind Study

question 151

Multiple Choice

In a double-blind study:

• A) only the researcher knows which participants have been exposed to the independent variable.
• B) both the researcher and the participants know whether the participants have been exposed to the independent variable.
• C) the subject is blindfolded during treatment.
• D) both the participants and the researcher who interacts with them are unaware of the treatment or condition to which the participants have been assigned.

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Definitions:

RTO Timer

A type of timer in industrial control systems that allows for retentive countdowns, meaning it retains the countdown value during power cycles or when in an off state.

Timer Reset Instruction

A control logic instruction used to reset or clear the accumulated time in a timer, returning it to its initial state.

RES Instructions

Commands in PLC programming that reset a specified condition or status, returning it to its default or initial state.

RTO Timers

Retentive Timer On; a type of timer in PLC programming that retains its accumulated value even after the controlling input is de-energized.